http://collegefootball.rivals.com/conte ... CID=891621
3. 1980 Holiday: BYU 46, SMU 45. Quite simply, unreal. SMU led 45-25 in the final three minutes after three TDs from Craig James and two from Eric Dickerson. But Jim McMahon and BYU mounted an incredible rally. A TD pass with 2:35 left made it 45-31, but BYU missed the two-point conversion. The Cougars recovered the onside kick and scored on a short run and two-point conversion with 1:58 left. This time, SMU recovered the onside kick, but went three and out – and had its punt blocked. BYU recovered on SMU's 41 with 41 seconds left but no timeouts. Two incompletions later, BYU was down to its final play. McMahon heaved it into the end zone, where Clay Brown caught it after the clock has gone to 0:00. Kurt Gunther then hit the winning PAT.
http://www.youtube.com/watch?v=b55Tn_YbLK8