For may many years in the early years of the Paterno era, WCMB was the local Penn State rightholder. Then there was the year or so when the three outlets you mention all concurrently aired the PSU games. Then until 2008, WHP held the rights. In 2009, the rights switched to WTPA.
Among the commentator crews doing PSU were guys like Mickey Bergstein, Tom Bender, Fran Fisher, Bill Campbell, Lanny Frattare, Gil Santos, Bill Zimpfer, John Sanders, Fran Fisher (again), and Steve Jones. Analysts have included Jim Tarman, John Grant, Scott Fitzkee, George Paterno and Jack Ham. Hosts have included Frank Gardinia, Guy Junker and Roger Corey.
Wondering if Jones and Ham will continue to work PSU football in 2012 after the scorched earth changes to the program.