I often find this board to be full of contradictions and man, this has got to be the cleanest place on the net with all of the soapboxes people have around here!
Those that say they don't allow TV's in the bedroom are some of the same people who said how stupid it is not to have unlimted texting for your kid (and buy cell phones for their kids when they are 8 years old).
Some of these soapboxers also allow their kids to read adult content books and think it's okay to take their 9 and 10 year-olds out to see comedians like David Cook and Jeff Dunham. No biggie, right?
Some of these parents have also purchased laptops for their kids (that their kids use in their bedrooms). But heaven forbid the kid has a TV in his/her room and they will stand on their highest soapbox to declare what great parents they are for not allowing this.
I had a TV in my shared bedroom with my brother *and* my sister since I was a child Gasp! According to Diser's it's against the law to share a bedroom with a sibling of the opposite sex!

Both of my kids have 36" TV's with DVR's in their bedrooms. They got them for Christmas last year. Guess what? They are great kids, active in sports, honor roll students, they don't use swear words, and they aren't violent.
As for me (the one who grew up with a TV in my bedroom), I don't watch any TV. I couldn't even tell you what the shows are these days! I have very little interest in TV and would rather do other things instead. It didn't ruin me.
Like a PP said, it's not the TV that will ruin the child, but a bad parent will.