I really do agree with the one writer saying the 1978 Oklahoma game was the best ever played in Memorial Stadium.
Unquestionably -- it was in a class by itself.
Not counting OU-NU '78, I'd cite these 5 home games as most revealing of NU football's historical trajectory in Memorial Stadium (actually I cheated and listed six):
Oklahoma '76: The early TO era was defined by an inability to overcome late Sooner Magic, and this was the start.
Missouri '78, the week after the OU game: TO finally beats OU and then this. A cruel, dagger-in-the-heart outcome that showed how NU football could go from the highest highs to lowest lows just like that. NU fans would be breathless with excited anticipation over a possible NC one moment; in the emotional abyss the next. It was as bad as the '84 OB vs. Miami.
Colorado '92: The Halloween Massacre. Not having beaten the Buffs in four years, and having had to endure insufferable behavior by the CU football community, NU finally got the monkey off its back in a big way. It was a revenge fantasy come true.
Colorado '94: The apex of NU football at home. While the '92 game showed NU football was again reaching for the heights, this game showed NU was back at the highest level. A complete dismantling of a NC-caliber opponent.
Kansas St: '03: The Bo Pelini-goes-rageaholic-vs. Bill Snyder game. NU loses by 29, it's worst home loss since pre-Devaney. This game removed all doubt about how far the progam had slipped.
Texas Tech' 05: This game removed all doubt about snakebitten NU football had become, with its ability to snatch defeat from the jaws of victory. A late NU interception to seal the win, right? Nope. Instead of simply falling down, the interceptor tries to run it back and fumbles, which TT of course recovers and goes on to win. (Deja vu Exhibit B: Texas '06, where NU completes a pass for a 1st down to run out the clock for the win. Or not. The receiver fumbles after gaining 1st down yardage, and UT recovers and wins.)