I like Dog City. I watched it when it was originally on the air. There aren't many episodes I really remember, though.
I like to talk about this show to people who I suspect never saw it, but also feel it's complicated to talk about it to people who never heard of it. Actually, it's probably simple to just describe the show - a live-action dog puppet animates his own cartoo series, with characters based on him and those he knows, and can interract with his creation. But whenever I talk about the show to people, I just have to tell them about the show's origins as well, which makes it more complicated: The show's part-animated and part-live action, the animated portions based on a fully live action special from The Jim Henson Hour, while in the context of the show the animated characters are based on the characters in the live-action sequences, who are reused puppets from the original special. Complicated, huh?
I don't remember seeing the original special during the Jim Henson Hour's original run, so I recall seeing the show first. Then I saw some of the puppets from the original special in The Secrets of the Muppets, and noticed them looking like puppet versions of the cast. Then I saw a clip from the special in The World of Jim Henson, with "Dog City" as a caption, and wondered what that Dog City was (a special or a different TV series?).
It's a shame this series doesn't have any commercial DVD releases (only the Amazon burn-on-demand).