This was surprisingly harder to find than I thought, and I can’t say I’m still 100% on this, but the person doing the voice over may be Charles Dumas, a former professor at Penn State, and seemingly contributor to WPSU who did most of the production of the show. The credits either didn’t roll a lot during the end of these episodes, or they were cut off in the video clips. Probably a combination of both.
Full versions of the Penn State Football Story are surprisingly hard to find online (you can find most of the football highlights, narrated by Guy Junker (Alum, Former Pittsburgh Sports personality and now Public Address for the Pirates), Charles seems to do the voice work in the beginnings of the Unrivaled version of the PSFS.