Any of the Sci-Fi series would be nice, Space Patrol, Tom Corbett: Space Cadet, and other that only ran 26 episodes was Captain Zero, which has been dropped onto fair to so-so dvd sets. Network did a very nice BD collection for the UKs puppet series, also given the name "Space Patrol", although...
Wow, I'm amazed no one opted for Groucho's You bet your life!!! That series has been in PD Hell for decades!! A wonderful restored edition for what ever still survives would be great, the jokes still carry some weight!!! Tell em what they've won George...a Brand new 1955 De Soto!!!