Keep Circulating the Tapes: Disney has owned TV and home video rights for even longer than they've owned Marvel Comics itself, but plans to release the shorts on DVD and Netflix became inexplicably delayed, bar some of the Hulk's shorts showing up on a DVD of his 1990s cartoon. The UK and Canada have some official DVD sets.
The Other Darrin: Hawkeye originally had Chris Wiggins as a voice actor, but Paul Soles later replaced him.