Are you kidding? Not being able to talk about pop idol wannabe got booted is a serious problem for you?
"My problem comes when everyone at school is talking about some element of popular culture, and one kid doesn't have a clue what to say because his parents don't let him watch TV."
This sounds like your projecting your own issues onto your kids (believe me when I say I know how that plays out, ask me why my kids aren't going to school sometime). Actually
forcing
TV on your kids or insisting that it's vital is utterly ridiculous.
Forcing your kids to eat unhealthy is cruelty, locking them in a closet is cruelty. Not having a TV is un-American, not cruelty.