| I had problems finding it. I wanted to show some people that weren't from canada it right after it came out and just found it now. I googled for it and luckily had the right word combo. But the easiest place to find commercials is http://www.adcritic.com/ (only reason I don't direct link is they have a victoria's secret commercial on the front page as a link). That site might be pay though. Doing a google search again I found that commercial where the american strips down to his shorts swims across to canada and then takes the musicians cloths(do to sign on the door) and gets his beer.
Ahh wait a sec I found a load of molson ones.(they seem to all be at ad critic and yes they have the sister one there but you have to log in to see it) Here from someone elses personal site is a list of the comercials and what they are about tho for those that haven't seen them/don't get canadian tv.
curioustly at the above site I linked to it is also a deaf culture site where they have their own version of I'm a canadian. :) | 
