I'm not posting to diss your comment about UNT; you might have been in TMS 1976 DKR's last year, for the North Texas State (of course now UNT) game, I was there. IIRC NTSU had a pro-style QB the scouts were high on. It was 1976, Texas was in decline.
I just looked it up at Texas Sports, as bad as I remember it. Scoreless 1st quarter. Erxleben kicked a FG early 2nd, NTSU scored a TD and went up 7-3 over UT at half. Uh oh.
Horns scored a couple of TDs in the 3rd (Earl and Cordaro) to go up 17-7 but NTSU scored a TD with about 7 minutes left in the game to get to 17-14 which is how it ended.
But the game seemed like at any second their QB might light it up. Texas outgained them about 400 to 200 yards but didn't feel like it. I guess Texas' D stopped NTSU at opportune times enough to win.
Just seeing your post about aggy and UNT brought back that dismal night to me.