Alf Crossover
Think back to the shows around the time of Gilligan’s Island. Do you recall a show about an alien called Alf? Now, here’s the real test…do you remember their crossover episode? Yes, Alf really got stranded on the island with the whole cast. What an episode that was!
Two Cartoons
Something shows back in the 60s and 70s did was use cartoon versions to stay relevant. For Gilligan’s Island, they had both the regular cartoon and also an outer space themed show called Gilligan’s Planet.