What is a television show that depicts race, class, age, or gender?

I need to analyze a tv show for class and write a paper on it. I need some ideas for television shows that address one of the things above. The book we read used Grey's Anatomy for an example, so you catch the drift

10 points to lost of opinions!

30 rock

I would think that almost all the topics are seen through characters.

race: tracy jordan

class: alec baldwin

age: tina fey/liz lemon

gender: tina fey again

There are tons of shows that you could do. Does it have to be based in this time period? Because Mad Men would be a great show that depicts race and gender issues of the 1960s.

One set in modern times could be something like Law & Order: SVU, because they have a lot of things that have to do with gender. It really depends on what you're tring to analyze.