The Flintstones - Energy: A National Issue (1977)

Energy: A National Issue is a 1977 animated educational television special starring Fred and Wilma Flintstone, narrated by Charlton Heston and produced by Hanna-Barbera Productions. It was broadcast in syndication on various local and regional channels between April 17 and November 22, 1977 as a presentation of The Center for Strategic and International Studies, Georgetown University.