Hegemony and TV

Reading about hegemony had me thinking about the way hegemony works on TV. It is easy to see from observing most televisions shows that they are about white, middle class characters. Characters of different classes, ethnicities, and backgrounds seem to be included a lot of the time to "fill a quota," so to speak, like an afterthought almost. When you examine some of the most popular shows on TV, it's a little concerning to see what the people in charge, the people with hegemony, have decided what we want to watch. Extremely wealthy people with hegemony over the other classes make it so that in shows like True Blood, Bones, New Girl, and Grey's Anatomy that the "ethnic friend" is never a lead character and is there to round out the cast or make the show seem politically correct. I'm not suggesting that all characters from non-white, non-middle class on TV are intended this way, but I fear and think that most are. Even on shows not considered strictly scripted, like The Voice or American Idol, there is a contrived harmonic balance of "celebrities" or "voice coaches" or "judges" to achieve a false sense of unity, and apparently, that's the way TV is nowadays.