Simple, open-source YouTube TV Interface client for Windows
YouTube's TV interface has a version that is loaded if you're watching using a smart TV browser. YTheatre uses a spoofed user agent to access the TV interface and display the content. This allows you to use YTheatre on any computer, even if you're not using a smart TV.
YTheatre manually injects code that allows you to use gamepads to control the TV interface, similar to how it works on game consoles.
YTheatre also supports loading chrome extensions. For more info about this, see the extensions page.
You can also configure YTheatre to automatically start in fullscreen on a specific display or monitor.