In the 1980s, after the success of Spider-man and His Amazing Friends , Marvel had planned on broadcasting a cartoon series based on a character yet to have his own animated series - Daredevil
The series was to star blind attorney Matt Murdock, who would fight crime as Daredevil with the help of his seeing eye dog, Lighting The Superdog!
You may remember that Daredevil already had a seeing-eye dog in the comics. During Joe Kelly’s run, Foggy Nelson’s mom, Rosalind Sharpe, gave Matt a seeing-eye dog as a gift. Deuce, the devil dog, but Deadpool’s sidekick Weasel later won him from Foggy in a poker game. Deuce became the seeing eye dog of Blind Al
Television writer Mark Evanier had pitched the idea to ABC. Evanier wrote out a pilot that did not include Lightning, and ABC was ready to buy the series. Later, a Marvel executive had "said the wrong thing" to an ABC executive, which supposedly was looking for an excuse to not buy the show and to give the time slot to another project that he preferred.
Does it get any more awesome than that?