I'd have to say...
Growing Pains: Don't know what I loved about this series, I just did. Ben's character was my absolute favorite, but, imo, he grew boring when he got older since he "calmed down".
Home Improvement: Loved this series, until Jonathan Taylor Thomas left it. Overall, the show as funny, but JTT's character (I know, he actually hates being addressed as that) was my absolute favorite! He was cute too, and sarcastic, and witty.
Seinfeld: For a show about nothing, it was pretty darn funny.
The Cosby Show: I loved this series as well. It did get a bit boring in the later seasons, since the kids grew up, but it was still nice. I like the fact that it showed that blacks can achieve goals if they work hard for it. The show always promoted getting a good education and doing your best, had decent morals, and showed that blacks can be something outside of an athlete or entertainer. Very awe-inspiring.
Boy Meets World: Well, I liked this show for season 1 and 2. It was entertaining, comedic, and fun. The show was a kid/teen comedy show. I wish it would've stayed this way. If it wouldn't have become a "cry me a river" teen drama, I probably would've stuck with it.
The Partridge Family: I know I'm out of the age range with this, but I did enjoy it. It's a nice parallel to The Brady Bunch. I liked the Partridge Family more, slightly, because it was a bit more realistic and did mention things like sex and politics.
The Brady Bunch: It's a guilty pleasure. I like the innocence this show seems to portray, I guess. I also like to joke around with the show too. Yeah, one guy working and can support six kids (three who had to have braces at one point, and one with glasses), a housewife, and a maid... He had to have been dealing on the side. =P
Leave it to Beaver: I'm way out of the range of this, but for some reason I love this show. It's so nice and innocent! Watching Leave it to Beaver just takes me back to when I was a kid, reading Beverly Cleary books (Henry; Ramona books) which took place in the 1950s. I also find the dynamic interesting and making parallels between that time and now. Like how back then, if you got a new bike for your kid, you were supposed to get it registered and put a license on it.
That's about all I can think of right off.