I can actually count the number of local friends who have any kind of TV service on one hand. Most of my friends are fresh out of college or close to it, so there's going to be an interesting generation that doesn't watch TV the same. I didn't even know the names of most reality shows until Myx posted a list.
most people my age, early to mid 20s, watch Netflix, youtube, HBO, etc
If there had been no "reality tv" we would have kept watching the same old sitcoms, gameshows and whatever else there is. It's not like TV would have gone away.