Gene Barry was 39 when he started as Bat Masterson. In real life, Bat Masterson fought his last gun battle in 1881 at the age of 27. That gunfight took place in Dodge City.
Bat Masterson rode Stardust.
During season 1, the theme song's lyrics start near the end of each episode's final scene and continue through the line "A man of steel the stories say." The cast and crew credits appear as the line "But women's eyes all glanced his way" is heard. Starting with season 2, several lines were dropped in the version sung during the closing credits,
Two episodes from season one have fallen into the public domain: Stampede at Tent City (1958) and The Fighter (1958).