I saw Johnny Jupiter on my grandmother's TV also, however it was on the DuMont TV network and the year was 1953. Ironically, my grandparents had a DuMont brand TV cabinet set that included radio and record player. Dallas had ABC (chan.8), NBC (chan.5) and CBS (chan.4) stations and I was significantly older before independent KFJZ (channel 11--now KTVT) started up. Therefore Slam Bang Theater with Micky&Amanda and Icky Twerp or Nightmare with Gorgon are very clear memories from 4-5 years later.
I never saw Johnny Jupiter again after 1953 so my memories of the show are quite fuzzy. I certainly don't remember the Robot being as crude as the pictures I found on the internet earlier today. I always thought that it was unlikely copies of the show could be found since only Kinescopes were possible in 1953. However, other things like Your Show of Shows have turned up, primarily in the Sid Caesar DVDs. Although I've been looking for evidence of Johnny Jupiter being available somewhere, it was only today that I found some guy who lists availability of that 1953 season. I hope to buy it after pay day at end of the month.
Unfortunately, I tend to mix characters from Johnny Jupiter with those from Howdy Doody, but I do know that Johnny's robot "Reject" was generally helpful to Duckweather, while "Deject" came across as his evil twin.
