The Lost Saucer (1975)

Jim Neighbors and Ruth Buzzi play two cornball alien robots that befriend two children who have stowed aboard their UFO. Along with their half-horse/half-dog, Dorsey, the bumbling duo travel through time in a series of WACKY adventures, attempting to return the children to their appropriate planet and year. Think Land of the Lost, only with Gomer Pyle robots in place of dinosaurs.