The Disastro-nauts

S1 E34: A pre-Gilligan's Island Alan Hale Jr. appears in this episode as Omar Keck, an eccentric millionaire who has financed an experimental missile which he intends to send to Mars. Not surprisingly, Uncle Martin (Ray Walston) is the first to volunteer to pilot the vessel into space. In anticipation of his flight, Martin allows Tim (Bill Bixby) to publicly reveal his true Martian identity--but only after he has safely begun his homeward journey. Needless to say, things don't go quite as expected!