Believe it or not, the "Batman" television series from 1966 had a legendary crossover with another beloved superhero series that ran at the same time. On the 52nd episode of season 2 in 1967, "Batman" welcomed Green Hornet (Van Williams) and Kato (Bruce Lee) from, you guessed it, the original "The Green Hornet" series. The Caped Crusader and his trusty sidekick, Robin (Burt Ward), encountered the "Green Hornet" duo during a devious heist concocted by Colonel Gumm (Roger C. Carmel). The...