Secret Agent Man is one of my favorite songs ever. (As a side note, I believe Johnny Rivers should be in the R & R Hall of Fame, and Jethro Tull as well, but I really don't care anymore about it. (Dolly Parton??!!)).
The Prisoner theme was great as well.
I saw some Prisoner episodes on YT. Weird in a great way. I really love old television and movie themes.
The jazz waltz opening of Mannix is awesome. So are the opening credits to UFO. The Brit sci fi with the purple haired babes on the moon.