I've been working through the entire run of All in the Family and I've been really enjoying it. Here's a video clip I made for Archie's thoughts on Minnesota:
The All in the Family theme song went through a few different versions and the one highlighted below is from the later seasons when Carroll O'Conner and Jean Stapleton sang the lyrics a little slower so everyone could understand the line "Gee, our old LaSalle ran great."
All in the Family Theme [Version from later seasons]
And here is a longer piano version of the closing theme played by Roger Kellaway.
Roger Kellaway -- Remembering You [All in the Family Closing Theme]
You can buy All in the Family DVDs here.