I’m on a Mac, but I connect my laptop to the TV, close the lid, and then use the Remote Mouse app to control the computer. Works pretty great. I can type, use the phone screen as a mouse with my finger, copy/paste, etc. I don’t do a ton of stuff when I’m riding, but it’s good enough for controlling TR and Zwift and getting things paired and whatever.
They also have it for Windows/PC: http://www.remotemouse.net/