I used to believe that Off Air was an actual show, possibly about airplanes.
A childhood belief about tv shows

others believed things like this
- My nephew, at around age three, used to say that airplanes trailing white exhaust were "airplanes on strings".— Mojo!
- I used to believe that there was an actual show, listed in the various guides, called "To Be Announced."— Donna
- I used to think that the TV show "Shark Tank" involved actual sharks in a tank.Anon
- when i was little, i used to believe that airplanes goes out of space.Anon
- When I was little, I used to believe that airplanes took off like rockets.— Edene
- I used to believe airplanes were flying submarines.— Gullible isn't in the dictionary