Dave Somerville Four Preps's original baritone vocalist, to create the central characters and develop the core format of "The Fall Guy," starring Lee Majors, for 20th Century Fox Television, which became a highly successful television series for ABC-TV. With additional lyrics which Larson wrote for it, "The Unknown Stuntman" became the theme for "The Fall Guy". Somerville's own home in the Hollywood Hills was used as the set for the home of Majors' character, Colt Seavers. His first children's album was titled "The Cosmic Adventures of Diamond Dave." It contained many original songs and characters and received critical acclaim in the U.S.
Colt by Fidget was common for horses to be known by their owner, colour, sex and pedigree rather than by an official name. The Duke of Bedford's previous Derby winner had been known as "the Florizel colt" or "the Brother to Fidget" during his three-year-old season, but was later given the name Eager. The Fidget Colt, however, was never given an official name: he was known only as "the Fidget colt" or "the colt by Fidget". The colt's dam, an unnamed mare by Highflyer was a half-sister to the notable broodmare Young Giantess, who produced the Derby winner Eleanor and was the grand-dam