https://techcrunch.com/2020/12/02/hulu-officially-launches-its-co-viewing-feature-watch-party/

Hulu’s social viewing feature, Watch Party, has now launched to all on-demand subscribers, the company announced today. The co-viewing feature was first introduced during the earlier days of the pandemic in 2020, allowing Hulu users to watch shows together from different locations, as well as chat and react to what they’re watching in a group chat interface on the side of the screen.

Initially, the feature was only made available to Hulu’s “No Ads” subscribers before being tested with Hulu’s ad-supported subscribers in a more limited capacity. To celebrate the Season 2 premiere of Hulu Original “Pen15,” the company had offered the Watch Party experience to its ad-supported customers for 10 days, starting on Sept. 18.