From Wikipedia
H.R. Pufnstuf is a children's television series produced by Sid and Marty Krofft in the U.S. It was the first Krofft live-action, life-size puppet, program. There were seventeen episodes of the show originally broadcast from 6 September 1969 to 4 September 1971. It was so successful that NBC kept it on the Saturday morning schedule for a full three seasons until August 1972, when it was cancelled. The show was shot in Paramount Studios and its opening was shot in Big Bear Lake, California.