Hair Trigger
US Veteran
My dad always described Star Trek as Gunsmoke in outer space. Kirk, Doc McCoy and Spock were the counterparts for Matt Dillon, Doc Adams and Festus.
Never thought about the similarities with the characterizations.
I read somewhere, when the series was in development, that Roddenberry tried to sell the series to doubtful TV execs as a "Wagon Train" to the stars.