I think what you are asking - is for the TSC to provide a list of grievances to how PSU, the greatest team to ever play football, has been screwed out of a rightful championship. Well I am here to answer your call to arms.
1. 1968 - PSU undefeated; Ohio State given national championship as part of a charity drive.
2. 1969 - PSU undefeated; Texas too scared to play PSU in a bowl, Richard Nixon declares Texas National Championship; Nixon was then impeached. Just sayin’
3. 1981 - PSU crushes Marcus Allen and USC in the Fiesta Bowl, gets zero respect and the national championship is awarded to Clemson. Years later - Clemson is punished by the football deities by allowing Notre Dame to drub them in 2022.
***Interim Note: 1982, Penn State smashed Hershel Walker and Georgia in the Sugar Bowl - gets national title. Not a screwup - just like writing that Penn State beat an SEC team. Handily. Hershel cried. A lot. I mean rivers of tears.
4. 1994 - Penn State goes undefeated. Plucks the feathers of the Oregon Ducks in the Rose Bowl. Nebraska steals the National Championship. Karma comes back to haunt them - cursing them to the worst team in the Big 10.