On February 28, 2017 YouTube announced the launch of YouTube TV, an over-the-top MVPD-style (Multichannel video programming distributor) subscription service that would be available for $35 per month. The service would offer live streams of programming from the five major broadcast networks (ABC, CBS, The CW, Fox Broadcasting Company and NBC), as well as approximately 40 cable channels owned by the corporate parents of those networks, The Walt Disney Company, CBS Corporation, 21st Century Fox, and NBCUniversal (including among others Bravo, USA Network, Syfy, Disney Channel, E!, Fox Sports 1, Freeform, FX and ESPN). Subscribers can also receive Showtime and Fox Soccer Plus as optional add-ons for an extra fee, and can access YouTube Red original content. YouTube TV does not include a YouTube Red subscription. (source: Wikipedia)
This is a full-screen experience that is optimized for mouse-less controls. Videos play in full screen by default.