
I have to admit to having never heard of this show until it was mentioned after the recent death of Glen A. Larson. I've only managed to track down a handful of episodes, and from what I've seen, it's not a bad little show. It's odd that it seems to be almost completely forgotten today.
The gist of it is that an ex bunco cop (Eddie Albert) and an ex con man (Robert Wagner) have formed a detective agency, where they specialize in playing elaborate con games to help their clients and capture bad guys. It's a 70s version of The Sting, basically.
Wagner and Albert work well together. The plots (so far) have been pretty entertaining, though I think they could use a little more tension; the protagonists are always a few too many steps ahead of their targets. There have been a lot of familiar guest stars in the episodes that I've watched so far. Including this gentleman whom you may recognize:

The show isn't as good as Magnum, Rockford Files or Columbo, but it isn't bad. I think it compares favorably to Quin Martin productions like "Cannon", "Barnaby Jones" and "The Streets of San Francisco." Worth a watch if it ever makes its way to dvd.