I have the DVD set of Brett Maverick. It's a nice little series and I occasionally re-watch episodes. Much better than his Nichols series.
I saw a few episodes of Nichols last year. It was my first exposure to the series and I thought it had a certain quirky charm. No Maverick or Rockford, of course, but definitely worth a look.
I just downloaded the entire Brett Maverick series off a web site (looks like they were off the DVDs, very impressive images), and will be taking a look at some of them soon. Still sorry that brother Bart didn't have the chance to be a regular part of the series.
One sidebar comment: I once read a comment by the producer of Maverick (who later became involved in Rockford, too). Sorry, I forget his name. Anyway, he said that on the Maverick set Jack Kelly was hilarious, with a great sense of humour (at least by the producer's taste), far more so than Garner.
Curious, since Garner was the one with a deft comedy touch on screen.