In 1976 Tim Matheson and Kurt Russell starred in the short-lived TV Western The Quest. The YouTube introduction explains the premise of the series. I recall watching it on BBC 1 when suddenly it was removed from the schedules without explanation. The show had been cancelled mid-season. Apparently the British had a greater love for the TV Western than Americans in the mid-1970s.
This was an entertaining series with two up-and-coming actors and deserved a full season at least. But the TV Western was dying in America in favor of shows such as Charlie’s Angels, famous for the jiggle-factor and threadbare plots.