Why Netflix, Hulu, Disney and Amazon Don't Want You Watching TV Alone

JP Mangalindan

JP Mangalindan is a senior contributing writer to dot.LA. His work has appeared in numerous publications over the last 18 years, including Bloomberg Businessweek, Fortune Magazine, GQ Magazine, Protocol, Entertainment Weekly, Mashable and Yahoo Finance. JP earned a bachelor's degree in journalism from Fordham University.

Why Netflix, Hulu, Disney and Amazon Don't Want You Watching TV Alone

One brisk Friday evening in January at around 9:30 p.m., 15-year-old Ella rushed down the stairs of her home in Stevenson Ranch, California with an announcement for her parents, who were watching "Lupin," a new Netflix series, in the living room.

"Can you get off of Netflix in 15 minutes?" she asked. "I'm having a watch party at 10. Thanks."

Every few weeks, Ella and her four best friends assembled at their laptops, snacks and drinks in hand, to watch something on the popular streaming service with Teleparty, a browser extension that lets users view the same Netflix movie or show at the same time. On tap for tonight? Two episodes of "Gilmore Girls," a show Ella and her "best friend crew" had never seen. Although Ella, whose parents asked us to withhold her full name because she is a minor, couldn't be in the same room with her girlfriends, this solution proved the next best thing — and for the girls that night, it was.


Ella and her friends are just a handful of the millions of people who have adapted to these unprecedented times. With people now spending more time than ever at home because of the pandemic, streaming services are meeting demand by doling out fresh content and serving up new features that expand the viewing experience.

Over the last 12 months, Hulu, Disney Plus, Amazon Prime Video and Sling all rolled out virtual watch parties, enabling groups of people to watch shows and films at the same time. These features were in the works well before COVID-19 struck, but the pandemic spurred them to step up development.

Hulu's Watch Party feature Hulu's Watch Party feature launched in May 2020.

Rolling out features like virtual parties is crucial in the battle for attracting and retaining users. According to a Deloitte survey published this month, 62% of people who signed up for a streaming service, did so to watch a specific show or film and canceled their subscription once they were done watching it. Features like virtual watch parties bring a social element into the equation that keep users engaged longer.

For Hulu, the Watch Party feature it launched its beta version in May 2020 started as an employee and intern hackathon project nine months before. But when the pandemic forced local governments to issue stay-at-home orders, Hulu accelerated plans for Watch Party and developed the feature in less than eight weeks. They rolled it out after initial tests indicated that over 75% of subscribers who hosted a Watch Party said they would do it again.

"We know that watching your favorite shows and movies has always been a social experience, and with TV becoming more synonymous with streaming, streaming has inherently become even more social," said Jason Wong, director of product management at Hulu, who added that the speedy development of Watch Party also stemmed from the fact that 60% of Hulu subscribers already streamed shows and films with others in their home, yielding a social experience unto itself.

"It was an ambitious timeline, but once we identified this need from our viewers, our team was very motivated to quickly deliver something."

In the 24 hours after launching Watch Party last December, Hulu saw over 10,000 unique Watch Party sessions with 60% of viewers in a Watch Party coming from its ad-supported plan. Moreover, Hulu tells dot.LA exclusively that users have held about 1.5 million Watch Party sessions to date, in which nearly 30 million messages were sent through the feature — and it continues to grow in popularity. According to Wong, the number of Watch Parties grew 5x from November to December last year.

Hulu's Watch Party feature Hulu experienced a 97% increase in Watch Parties when Christmas comedy "Happiest Season" debuted in November.

New show premieres like the LGBTQ+ coming out series "Love, Victor" and Season 2 premiere of the teen comedy "Pen15," as well as films such as "Deadpool," "Parasite," and the Hulu original film "Palm Springs," proved particularly popular for Hulu Watch Parties. Also big? Episodic premieres, like "The Bachelor" and "A Teacher," a Hulu original limited series starring Kate Mara. When "Happiest Season," a Christmas comedy starring Kristen Stewart, Daniel Levy and Alison Brie debuted on Thanksgiving, Hulu experienced a whopping 97% increase in Watch Parties.

Five months later, Disney Plus released its own GroupWatch feature. The rapidly growing streaming service, which reported 86.8 million subscribers in December, took a different tack with GroupWatch, however: users can click any one of six "reactions," or emoji, that pop up onscreen during a viewing, but they can't send text-based messages.

That was a purposeful decision, contends Michael Cerdà, vice president of product at Disney Plus.

During GroupWatch's development, the Disney Plus product team conducted extensive research to identify what worked and what didn't. For instance, GroupWatch currently allows up to seven people in a GroupWatch session — a number the group settled on after agreeing that any more people in a session made it "too noisy."

"In our research, one of the big takeaways was that people wanted to feel like they were a part of something, but we didn't want to get in the way of the content," said Cerdà.

While Disney did not disclose engagement numbers around GroupWatch, Cerda acknowledged that Disney Plus users are more likely to hold GroupWatch sessions when highly-awaited new films and shows premiere, when Disney Plus launches in a new region, and around the holidays. Last Halloween, Tim Burton's "The Nightmare Before Christmas" was the focus of many GroupWatch sessions. Other programming like the recently-released series "WandaVision," "The Mandalorian," "Frozen 2," "Lion King," "Clouds" and "Avengers: Endgame" also proved popular for GroupWatch sessions.

Sling's Watch Party, which launched last September, takes things one step further than its rivals, allowing up to four people to participate through video chat. For the Sling product development team, video chat was a "must have" part of Watch Party.

"When you're watching something in real-time, so much of our responses can't be verbalized," explains Jon Lin, vice president of product at Sling TV. "If something is really impactful, you'll see it on the faces of your friends and family. That's the kind of connection we wanted to capture with Watch Party, which is why we focused so much on creating a video chat feature — so it felt like the people you are watching with are actually right there next to you."

Disney Plus' GroupWatch feature Disney Plus is currently exploring expanding the ways users can communicate and share during GroupWatch sessions

Sling also would not disclose specific engagement numbers around their new feature, but said live events like sports have proven very popular for Watch Party users. The streaming service also saw an uptick on the evening of the 2020 U.S. presidential election in November, as well as around Christmas movies during the holidays, says Lin.

Netflix doesn't offer a comparable group watching feature yet — the third-party extension from Teleparty fills the gap for now — but it's likely coming. For services like Hulu, Disney Plus, Sling, Prime Video and others, the feature is yet another way to incrementally boost engagement on their platforms, particularly during a time when it's difficult — or in many cases, strongly discouraged — for people to mingle in groups.

"Streaming services have quickly adapted, and I think it makes absolute sense — it brings a social element, sort of like going to a movie theater," says Eunice Shin, a digital strategy partner who leads media entertainment and direct-to-consumer efforts at Prophet, a growth strategy consulting company. "It's smart for them to pull the feature onto their platform, as opposed to using a separate app like Airtime."

Virtual watch parties aren't just here to stay, it seems. Services are also finding ways to shore up the experience to make them more compelling.

Based on user feedback, Disney Plus is currently exploring expanding the ways users can communicate and share during GroupWatch sessions, including possibly text-based chat or offering more emoji reactions. Hulu said users are clamoring for the ability to throw a Watch Party with their friends on different devices. (The feature only works on desktop browsers at the moment.) Meanwhile, Sling recently updated the design of Watch Party's chat messaging and upped the number of non-Sling TV subscribers who can join Watch Parties, from one to three.

"It's only going to get better — it's going to get more refined." says Cerdà of virtual watch party experiences. "I think we're at the front end of something even bigger."


***This story has been updated to correct the timeline provided by Hulu regarding its Watch Party data.

Who Gave the AI Access?

🔦 Spotlight

Happy Friday, Los Angeles.

The newest employee in the office does not need a desk, a salary or a coffee order. But it may have access to your company’s emails, financial records, customer data and software systems.

That raises a fairly important question: Who decides what an AI agent is allowed to do?

El Segundo-based cybersecurity company Saviynt is building its next chapter around the answer.

Carrick Capital Partners announced this week that it closed a $600M continuation vehicle for Saviynt, including a new $255M investment in the company. The transaction allowed Carrick’s existing investors to either take liquidity or remain invested, while also providing liquidity to Saviynt employees through a tender offer.

Continuation vehicles are not exactly known for making gripping Friday reading. The company behind this one is considerably more interesting.

Saviynt develops identity security software that helps businesses determine who can access their applications, data and infrastructure. Increasingly, however, “who” does not refer exclusively to a person.

Companies are deploying AI agents that can retrieve information, write code, communicate with customers and complete multistep tasks with limited supervision. These digital workers need access to company systems to be useful, but every new permission also creates another opportunity for sensitive information to be exposed or an unintended action to be taken.

In other words, AI agents may be tireless employees. They are not necessarily trustworthy ones.

Saviynt is addressing that problem through Zuma, its platform for discovering, securing and governing AI agents, large language models and other nonhuman identities alongside a company’s human workforce. The goal is to give businesses one place to determine what every identity can access, whether it belongs to an employee, a contractor, a software application or an autonomous agent operating at machine speed.

The opportunity appears to be growing quickly. Saviynt has surpassed $300M in annual recurring revenue, up from approximately $10M when Carrick first invested. The company says bookings have increased by more than 80% this year while customer retention remains at 96%.

The new investment was completed as part of the final close of Saviynt’s previously announced $700M Series B, which valued the company at approximately $3B. Carrick’s continuation vehicle was led by Coller Capital and co-led by HSBC Asset Management, giving the investment firm more time and capital to remain behind one of its strongest-performing companies.

For Saviynt, the funding will support further development of its identity platform, deeper integrations with major cloud and software providers and its push to become a central security layer for the agentic workplace.

That ambition reflects a broader change taking place inside companies. The first wave of enterprise AI focused largely on what the technology could generate. The next phase is about what it can actually do, and whether businesses can maintain control once AI moves from answering questions to taking action.

Saviynt is betting that identity will become the gatekeeper.

AI agents are gaining access to the digital workplace, whether corporate security teams are ready for them or not.

Someone still has to hold the keys.

More from this week’s LA startup and venture scene below.

🤝 Venture Deals

    LA Venture Funds

    • Fulcrum Ventures participated in Critical Materials Group’s $10.3M seed round, led by Overmatch Ventures and joined by Victory Six Advisors. The Austin-based defense manufacturer will use the funding to develop and commission modular, automation-ready production systems designed to expand domestic manufacturing capacity for munitions and advanced energetic materials. - learn more
    • Fusion VC participated in Newlight’s $9M seed round alongside lomarlabs, BIRD Energy, Undeterred Capital and CiRi Ventures. The San Francisco-based maritime technology company recently demonstrated its hydrogen-hybrid retrofit on an 8,500-nautical-mile commercial voyage, reducing fuel consumption by 24% and carbon dioxide emissions by 28%. - learn more
    • Rebel Fund participated in Metal’s $4.5M seed round alongside a16z, Y Combinator, Gaingels, Indus Valley Capital, Phaze Ventures and Pioneer Fund. Metal will use the funding to build an AI-native operating system that helps founders identify relevant investors, manage outreach and automate other parts of the venture fundraising process. - learn more
    • UP.Partners participated in Reframe Systems’ $40M funding round, led by Energy Impact Partners and joined by Counterpart Ventures, E12 Ventures, Global Brain, Thin Line Capital and LACI Impact Fund. The homebuilding startup will use the capital to expand its network of robotics-powered microfactories, which it says can construct homes three times faster and at 35% lower cost than traditional methods. - learn more
    • Clocktower Technology Ventures participated in Sharpi’s $4M seed round, co-led by NXTP and ONEVC and joined by MAYA Capital. The Brazilian startup will use the funding to expand its team and develop autonomous AI agents that connect WhatsApp conversations with enterprise systems to automate B2B sales tasks such as order processing, customer follow-ups and demand generation. - learn more

    LA Exits

    • Extensiv, a California-based provider of warehouse management and fulfillment software, has been acquired by Descartes Systems Group for approximately $120M in cash. The acquisition adds Extensiv’s AI-enabled inventory, order, billing and omnichannel fulfillment tools to Descartes’ logistics network, strengthening its offerings for third-party logistics providers and ecommerce brands. - learn more
    • DocSolutionUSA has been acquired by Stewart Information Services alongside ProTitleUSA, adding mortgage document generation and automation capabilities to Stewart’s title services platform. The companies provide title, document and due diligence services for mortgage servicers, investors and capital markets clients; financial terms were not disclosed. - learn more
    • Fysh Foods, the Los Angeles-based plant-based seafood brand founded by creator and entrepreneur Zoya Biglary, has been acquired by City Roots Hospitality in an all-cash deal with undisclosed terms. City Roots plans to introduce Fysh Foods’ raw fish alternatives across its New York City restaurants and potentially expand the brand beyond the city as its restaurant portfolio grows - learn more

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      An LA AI Company Just Won Entertainment’s Backing

      🔦 Spotlight

      Hello LA.

      The entertainment industry has spent the past several years debating what generative AI could take from creators.

      This week, some of its biggest companies put money behind an AI startup promising to build something for them instead.

      Los Angeles-based Stability AI raised $76M in Series B funding from an investor group that includes Electronic Arts, Sony Music Group, Universal Music Group and Warner Music Group. AMD Ventures and Pacific Alliance Ventures also joined the round, while LA-based MANTIS Capital and Sound Ventures are among the company’s existing backers.

      The financing brings Stability AI’s total funding under CEO Prem Akkaraju to $232M, including two equity rounds and convertible notes. The company plans to use the new capital to expand its creative production tools, applied research and professional services across music, gaming and entertainment.

      The amount is notable. The names attached to it are the bigger story.

      Generative AI’s arrival in entertainment has been anything but quiet. Artists have questioned whether their work was used to train models without permission. Studios have faced pressure over how the technology could affect jobs. Record labels have pursued AI companies in court while simultaneously exploring how the same technology might fit into their businesses.

      Now, several of the world’s largest entertainment companies are investing directly in one.

      That does not mean the industry has resolved its concerns about AI. It means some of its biggest players would rather help shape the technology than wait to see what it becomes.

      Stability AI is positioning itself for that opening. Rather than focusing solely on general-purpose models, the company is building tools specifically for professional creatives. Its recently launched Stable Audio 3.0 was trained on fully licensed music and lets artists generate, edit and arrange audio through a web platform or directly inside digital audio workstations.

      Image Source: Stability AI

      That licensed-data approach is central to the pitch. The next phase of creative AI will not be decided only by which company produces the most impressive model. It will also depend on which companies can earn the trust of the artists, studios and rights holders whose work gives those models value.

      For its new strategic investors, the round offers more than financial upside. It creates a closer view into how generative AI may change production, a voice in how the tools develop and an opportunity to establish rules before those rules are established for them.

      For Stability AI, the backing provides something equally important: credibility inside industries that have every reason to scrutinize what it is building.

      The company now has capital and access to some of the largest catalogs, franchises and creative workforces in entertainment. What it does with that access will determine whether this becomes a meaningful alliance or simply an impressive collection of logos.

      Either way, the industry is no longer watching from a safe distance.

      It has entered the room.

      LA’s Air-Taxi Plans Are Coming Downtown

      While Stability AI is trying to change how entertainment gets made, Archer Aviation wants to change how people get to it.

      AEG and Archer announced plans to develop downtown Los Angeles’ first vertiport at L.A. LIVE, creating a potential new stop in Archer’s proposed electric air-taxi network ahead of the 2028 Olympic and Paralympic Games.

      Image Source: Archer

      The planned site would sit beside Crypto.com Arena and allow passengers to travel to and from the entertainment district aboard Archer’s Midnight aircraft. The company says its network could turn drives that take an hour or longer into electric flights lasting approximately 10 to 20 minutes.

      Archer has already identified SoFi Stadium, USC and Hollywood Burbank Airport as possible locations, with its recently acquired Hawthorne Airport expected to serve as the network’s central operating hub. As the official air-taxi provider of LA28 and Team USA, Archer has an unusually visible deadline for turning those plans into something tangible.

      AEG and Archer have completed an initial feasibility study of the L.A. LIVE site, including reviews of land use, airspace, power availability and community impact. The next phase will examine operations and the passenger experience.

      There is still a substantial distance between a proposed vertiport and a functioning air-taxi network. The infrastructure must be built, regulatory approvals must be secured and passengers must be persuaded that flying across the city is safer and more practical than staying on the ground.

      Still, few locations could make that future feel more real than L.A. LIVE. Millions of people already pass through the district for concerts, games and major events. Placing a vertiport there would bring urban air mobility out of the concept stage and directly into public view.

      Together, this week’s announcements show Los Angeles becoming a testing ground for two technologies still moving from promise toward everyday use.

      One could reshape how entertainment is created. The other could reshape how Angelenos reach it.

      In a city famous for both its creative industries and its traffic, that feels appropriately on brand.

      More from this week’s LA startup and venture scene below.

      🤝 Venture Deals

        LA Companies

        • Atorie raised a $9.5M seed round from investors including a16z speedrun, Night Capital and Lightspeed Venture Partners’ Jeremy Liew. The AI-powered fashion startup connects consumers directly with luxury manufacturers to offer high-quality goods without traditional designer markups, and will use the funding to expand logistics, production and its AI shopping tools. - learn more
        • Long Beach-based Maglut Heavy Industries emerged from stealth with $3.1M in pre-seed funding from Wave Function, Nova Threshold and Julian Capital. The startup is developing a chromatography-based system to process and refine rare earth elements domestically, with pilot tests producing materials at more than 99.9% purity. - learn more

        LA Venture Funds
        • MANTIS Venture Capital participated in Voya Energy’s $35M Series A, led by Energy Impact Partners and joined by John Doerr, StepStone, Founders Fund, Overmatch and Seven Stars. The Hayward-based startup will use the funding to commercialize its aluminum-fueled generators, which provide clean, off-grid power for data centers and other energy-intensive operations without combustion or local air emissions. - learn more
        • Regeneration.VC participated in eComID’s $17M seed round, led by Systemiq Capital and joined by Course Corrected, Stadium and returning investor CapitalT. The Stockholm-based startup will use the funding to expand internationally and scale its AI-powered Shopping Passport, which helps retailers personalize sizing and product discovery while reducing returns. - learn more
        • Clocktower Technology Ventures participated in Helcim’s $53M Series C, led by BDC Capital’s Growth Venture Fund and joined by new investors Curql Collective and LA-based Gold House Ventures. The Calgary payments company will use the funding to expand its platform, develop additional financial services and serve more small and midsize businesses across North America. - learn more

        LA Exits

        • Altruist agreed to be acquired by Vanguard, giving the Los Angeles-based wealth technology and custody platform greater resources to expand its tools for independent financial advisors. Altruist will continue operating as a standalone business under its existing leadership and brand after the deal closes, which is expected later this year pending regulatory approval; financial terms were not disclosed. - learn more
        • Personality AI has been acquired by WildBrain for approximately $11M in cash and 1M WildBrain shares upfront, with additional payments tied to future performance. The startup develops kid-safe conversational AI experiences for entertainment characters, including “Hey Peppa Pig,” and will help WildBrain expand its franchises into interactive products across toys, apps and digital platforms. - learn more

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          This Torrance Startup Just Raised $1B to Mass-Produce Hypersonic Missiles

          🔦 Spotlight

          Happy Friday, Los Angeles.

          Castelion has spent the past four years trying to prove that hypersonic missiles do not need to take decades to develop or cost so much that the military can only afford a limited supply.

          Now comes the harder part: producing them at scale.

          The Torrance-based defense startup raised a $1B Series C at a $13B valuation. The financing includes $800M in equity and a $250M revolving credit facility, making it one of the largest recent raises for an LA defense technology company.

          JPMorganChase’s Strategic Investment Group, Andreessen Horowitz and Carlyle co-led the round. Lightspeed Venture Partners, Lavrock Ventures, Altimeter, General Catalyst, T. Rowe Price and LA-based Interlagos Capital also participated.

          Castelion will use the capital to ramp production of Blackbeard, its low-cost hypersonic strike missile, while developing a longer-range precision weapon and new defensive systems. Hundreds of millions of dollars will go toward expanding manufacturing at Project Ranger, the company’s 1,000-acre production campus in New Mexico.

          Image Source: Castelion

          Blackbeard was designed in California, will be built in New Mexico and is expected to enter service in 2027. Castelion says it has already secured more than $500M in U.S. military contracts over the past 18 months and moved the missile from a clean-sheet concept to an official program in fewer than four years.

          That timeline is central to Castelion’s pitch. Traditional defense programs are often associated with long development cycles, limited production runs and eye-watering costs. Castelion is applying the rapid testing and vertically integrated manufacturing approach popularized by commercial space companies to weapons production.

          But a $13B valuation changes the standard. Castelion is no longer being judged as a promising startup with an impressive prototype. It is being funded like a company expected to become a major part of the American defense industrial base.

          The question is no longer whether a startup can build a hypersonic missile. It is whether one can manufacture thousands of them without losing the speed, discipline and cost advantages that made it disruptive in the first place.

          For LA’s defense ecosystem, that shift matters. The region has become home to a growing number of companies promising to modernize how America builds critical hardware. Castelion now has the capital, contracts and facilities to show what happens when that promise reaches the factory floor.

          The next test will not be in a pitch deck. It will be in production.

          More from this week’s LA startup and venture scene below.

          🤝 Venture Deals

            LA Companies

            • Long Beach based Ampaire raised a $19M Series B led by DiamondStream Partners, with strategic participation from Alaska Star Ventures and IAGi Ventures, bringing its total funding to $68M. The hybrid-electric aviation company will use the capital to expand flight operations, produce additional Eco Caravan aircraft, advance regulatory certification and scale its manufacturing capabilities. - learn more

            LA Venture Funds
            • SUM Ventures participated in AssistMe’s €6.5M funding round, which was led by CRB Health Tech and Vorwerk Ventures and included several returning investors. The German care technology company will use the capital to expand across Europe, prepare for a U.S. launch and further develop alea, its digital platform for supporting caregivers and improving nursing-home operations. - learn more
            • CIV led Hypercubic’s $5.3M seed round, with participation from Y Combinator, Afore Capital, Pioneer Fund, Multimodal Ventures and several angel investors. The San Francisco startup will use the capital to develop AI agents that can analyze, document and rewrite decades-old COBOL systems, helping enterprises modernize critical mainframe software faster and with less risk. - learn more
            • Plus Capital participated in Wispr Flow’s $280M Series B, led by Menlo Ventures and joined by existing and new investors, valuing the AI voice company at $2B. The funding brings Wispr’s total capital raised to $361M and will support its expansion beyond dictation into meeting tools and proprietary speech technology, including its new Canto model. - learn more
            • Alexandria Venture Investments participated in Leal Therapeutics’ $30M Series A extension alongside new investor Eli Lilly and returning backers including OrbiMed, Newpath Partners and SV Health Investors’ Dementia Discovery Fund. The biotech company will use the funding to advance clinical trials of LTX-001 for schizophrenia and LTX-002 for ALS, with initial schizophrenia trial data expected by year-end. - learn more
            • BroadLight Capital participated in Higgsfield’s $400M Series B, led by DST Global and joined by investors including Goldman Sachs Alternatives, Smash Capital, Fifth Wall and Intel Capital. The AI video and image platform, now valued at $5.4B with $700M in annualized revenue, will use the funding for R&D, global infrastructure, AI hiring and international expansion. - learn more

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