I saw a re-run of this episode last night. The video is even better than the song, but due to legalities the video wasn't on Utube.
[ame=http://www.youtube.com/watch?v=Jxyny7ZzrHM]YouTube - Family Guy: Pawtucket Pat's Beer Song[/ame]
[ame=http://www.youtube.com/watch?v=Jxyny7ZzrHM]YouTube - Family Guy: Pawtucket Pat's Beer Song[/ame]