How the West Was Won is an American western television series starring James Arness, Fionnula Flanagan, and Bruce Boxleitner. A spin-off of the 1962 Cinerama film, it aired as a mini-series in 1977, and as a regular series in 1978 and 1979, preceded by a 2.5-hour long pilot episode,The Macahans, in 1976. A total of 25 episodes were aired.