Big Ten, Trojans talk of the day

Week 4 in college football offered delivered key early-season Big Ten matchups, a South Florida surprise for Louisville and some second-half magic for the Trojans at Oregon.

And GameDay Live's experts were on hand throughout the day. Ivan Maisel checked in from Eugene. Pat Forde and Bruce Feldman joined the fun. Adam Rittenberg logged on from Seattle. Bob Davie and Chris Fowler took your questions. Of course, Jim Donnan also delivered.

Before joining the fun next Saturday at noon, take a look at some of the best from the Sept. 24 chat: