I do nearly all of my TV Watching on a 27" Sanyo color TV that has been in my family's possesion for, oh, about 13 years, at least. I remember when I was around 5 or 6 I actually fried the exact TV sitting next to me by spraying the screen with windex and not wiping it fast enough and it wound up running down the screen and into the electronics.

So, needless to say, this TV's been on it's last leg for the past 3 years, so my picture quality already isn't that great, but I can't say that I've personally seen any drop in quality recently. My parents have some $1300 TV now (hence why I took this one) with an HD Box from Digital Cable, and whenever I watch TV on it I never notice anything... spectacular. For awhile I was considering shelling out $1500 to buy a 50" Sony Bravia, but meh.