1 Breakaway52 min · 4 Sep 1975 2 Force of Life52 min · 11 Sep 1975 3 Collision Course52 min · 18 Sep 1975 4 War Games52 min · 25 Sep 1975 5 Death's Other Dominion52 min · 2 Oct 1975 6 Voyager's Return52 min · 9 Oct 1975 7 Alpha Child52 min · 16 Oct 1975 8 Dragon's Domain52 min · 23 Oct 1975 9 Mission of the Darians52 min · 30 Oct 1975 10 Black Sun52 min · 6 Nov 1975 11 Guardian of Piri52 min · 13 Nov 1975 12 End of Eternity52 min · 20 Nov 1975 13 Matter of Life and Death52 min · 27 Nov 1975 14 Earthbound52 min · 4 Dec 1975 15 The Full Circle52 min · 11 Dec 1975 16 Another Time, Another Place52 min · 18 Dec 1975 17 The Last Sunset52 min · 1 Jan 1976 18 The Infernal Machine52 min · 8 Jan 1976 19 Ring Around the Moon52 min · 15 Jan 1976 20 Missing Link52 min · 22 Jan 1976 21 Space Brain52 min · 29 Jan 1976 22 The Troubled Spirit52 min · 5 Feb 1976 23 The Testament of Arkadia52 min · 12 Feb 1976 24 The Last Enemy52 min · 19 Feb 1976