It'll Never Catch On..

I know I'm just a bovine, ignorant, arrogant and dull-witted anglo-saxon oaf (well, I'm half Scottish in fact, the good half anyway) but I found this explanation of the rules of Gaelic Football pretty difficult to follow in places. Terrible background music too.
I mean, I get the part about being able to score goals and handle the ball, but not so much some of the rule changes or how many people make up a side..there again I'm unlikely to start playing at an albeit sprightly 36,