Jeopardy! — Season 12 NBC Ended 1 Episode · Premiered January 3, 1975 · Ended January 3, 1975 1975 N.B.C. Episodes. ← Season 1 All Seasons Episodes E01 Episode 1 Fri, Jan 3 1975 5:00 PM GMT+0000 30 min ▶ No synopsis available. ← Season 1 All Seasons