I remember watching a beer commercial online a while ago that had to do with the Wizard of Oz that was really funny, but I can't seem to find it now that I was telling somebody about it.. Asking all my BA family to help me out and maybe remember this little gem?
I'm pretty sure this isn't what you were thinking of, but it's still pretty entertaining in a very retro way. The star of the commercial is Bert Lahr - the cowardly lion. http://www.youtube.com/watch?feature=player_detailpage&v=Coh5ZGdUDLo
