Here's something else I thought I'd bring up, regardless of how much of a dork it makes me look. If I'm wrong, I'm wrong. But just in case...

The intro the show switched to from 1975 (I guess the "4th season") on, with Bob in his hat and jacket walking from one end of each little "screen" to the other, reminds me of the Atari game "Pitfall", where another guy with a sort-of similar hat and jacket walked (or jumped, swung, whatever) from one end of a different scene to the other.
Does anyone else see the similarity here, or is it just me?