That Cheers bit was from Season 8, Episode 5, circa 1989. I just found it online and made an audio recording of that scene.

It's a Windows Media Audio file, so ya probably need a Windows Media Player for it. 1:16, 917 KB-

www.drivehq.com/file/df.aspx/publish/mgpa/imgs/vx3/cheers.wma

Mark