On Times Past Television YouTube channel a bunch of lost TV shows are popping up.

Love on a Rooftop
The Governor and JJ
The Double Life of Henry Phyfe
To Rome with Love
The Ugliest Girl in Town
Diana (Diana Riggs sitcom)
And the pilot for Arnie.

A bunch of dramas and teen focused music shows are there too.

They even have two episodes of Me and the Chimp. I'm very impressed with the collection of rarely seen shows.

I know Good Morning, World and The Smith Family were released on DVD. I doubt very many of the others are commercially available.