Patriot Games I think
I can't find that line in any episode, are you sure it was a Family Guy episode?
The King is Dead
Season 8 episode 10 Big Man on Hippocampus
There is no Peter Griffin.
as a father in the griffin family
Trombone
Season Two|Episode Twenty Wasted Talent
Its a Thanksgiving episode, called "The One With The Football" they play while the Turkey is cooking for the Gellar Cup. Ross and Monica used to play for it as kids.
Play It Again, Brian
Center
Season 8|Episode 16 April in Quahog
Season 3, episode 21: "Family Guy Viewer Mail #1"