Alias Smith and Jones called the Devil's Hole Gang, loosely based on the Hole in the Wall Gang from which Cassidy recruited most of his outlaws. To lend them an element of audience sympathy, Heyes and Curry were presented as men who avoided bloodshed (though Curry did once kill in self-defense) and always were attempting to reform and seek redemption for their "prior ways". The names "Smith" and "Jones" originated from a comment in the 1969 film "Butch Cassidy and the Sundance Kid", when before one of their final hold-ups, the characters are outside a bank in Bolivia and Sundance turns to Butch and
Butch Cassidy (TV series) by Wally's forgetfulness; either way, Elvis' mere presence would cause Mr. Socrates to sneeze and go haywire. Mr. Socrates would then send the group out of the lair and off to their assignment. Butch, designated as "Sundance 1", wore a special ring with a hidden communicator in it to keep in contact with Mr. Socrates from afar. The combination of a men-women pop band and mystery stories made "Butch Cassidy" seem like Hanna-Barbera's literal reply to Filmation's "The Hardy Boys" series. On January 15, 2013, Warner Archive released "Butch Cassidy and the Sundance Kids: The Complete Series" on DVD in