Eleanor the cow swallowed Eb's radio on "Music to Milk By", a 1967 episode of this classic down-on-the-farm sitcom
When a Cincinnati radio station switches from sedate music to top-40 
rock 'n' roll, ... Mork & Mindy was a spin-off from an episode of Happy Days seen 
in ... chair, but upside down, led most people to think of him as just some kind of a 
nut.