Deliberate mistake: When the show premiered on March 18th, 1981 Ralph's last name started out as Hinkley, but after a couple of episodes had aired on TV, on March 30th a man named Hinckley shot then U.S. President Reagan and three other people, so in the remaining episodes of season 1 Ralph's last name was changed to Hanley. His last name was changed back to Hinkley in season 2.
The Greatest American Hero (1981)
1 mistake in Season 1 generally
Starring: Michael Pare, Robert Culp, William Katt, Connie Sellecca, Don Cervantes
Bill Maxwell: And so we went to NewFOUNDland to make friends with all the whales and a bunch of little fishies.