The TV in the family room is hooked up to my laptop. It's set to stay on when you close the lid so it is stashed in the entertainment center. I am able to cheat the system a bit because I can log in to my mom's TW account. It lets you watch some channels via the TW app, but it's pretty limited since it sees that it's not her wi-fi. You can also stream a lot of channels live if you're able to log in with a provider account so it works for that too. We've got a few other tricks to watch additional stuff, but that's a gray area.
I stuck an antenna up on the side of the house and we get 50-somthing channels now. It's actually more than that but I still need to go through and delete some of the duplicates that we're picking up from Dayton...so, yeah, it works really well. It was on sale at Walmart for $15, but they're still pretty cheap. I also got a TV tuner card so I can use the laptop to watch and/or record live TV. Works good for recording Bengals games if we're going to be out on Sundays.
To give you an idea of size, it's about 2 1/2' long.