I don't have a place of my own, I certainly don't own any TVs. However, whenever I stay somewhere with a TV, it is ignored. I don't turn it on. If I had a place of my own I wouldn't have a TV, anywhere.
Most people do have TVs though, but I would say only about a third keep one in the bedroom.
Is it possible to scratch your nails against glass and make that screech? I've seen plenty of the chalkboard screechers, never in my life a single glass one