The next quality I think the writing. All of the shows I've listed here are so beautifully written. In Arrested Development almost every line is joke that also pushes the story line forward. In Doctor Who there are so many different story arch's beautifully intwined in each other that I can't even comprehend how they do it. For 30 Rock the characters are all so exaggerated but the situations and dialogue they're given makes it all seem like a normal thing. Southpark still blows me away because they make it all seem so stupid and crude but are still able to make informative statements on current events. That's something I really respect because I have no idea how they do it.
The third quality I think I look for is a show that makes statements about current issues. I feel like it's hard to get a lot of people to informatively look into a current issue and have a stance on it but I think TV can help show people an exaggerated version of both sides. 30 Rock very obviously did it especially during the 2012 election. As I stated about South Park earlier, it does a really nice job on that but it also makes both sides look equally ridiculous so no one group of people feel put off by it. Doctor Who has been involving many characters who represent their stance on same sex marriages. It shows to me that they are paying attention and are really trying to make a difference with their medium.
Going from here and with suggestions from friends I think I will be starting Parks And Recreation this weekend. All I've been hearing about it from friends is how great all the characters are and how good it is.