TV Themes - Land of The Lost - 1974

Land of the Lost is a children's adventure television series created by David Gerrold and produced by Sid and Marty Krofft, co-developed with Allan Foshko.
It is a live-action show mixed with stop-motion animated dinosaurs, about a family caught in the prehistoric world.

Originally aired on Saturday mornings from 1974 to 1976, on the NBC television network. Info source: Wikipedia.