Alabama vs. Mississippi State 1980

I was at this game in 1980 . . . the last time Alabama was ranked #1 in a contest with MSU:

Mississippi State 6, Alabama 3, Nov. 1, 1980: Bear Bryant’s Crimson Tide were ranked No. 1 and, like this year’s Trojans, were shooting for an unprecedented third straight national title. That dream ended in Jackson, Miss., against a Bulldogs team that had lost to Southern Miss, 42-12, earlier in the season. Alabama had a chance to win it late, but fumbled inside the Mississippi State 5-yard line with 15 seconds left. The Bulldogs recovered with six seconds remaining, but amazingly fumbled on the very next play. MSU fullback Donald Ray King won the furious scramble for the ball on the one-half yard line to preserve the victory.
(source)