Superbowl XL

I just watched my first Superbowl. (The 'XL' in the title is officially just Roman numerals for 40 but many Americans are calling it 'extra-large' because that's what all their clothing tags say!) The Pittsburgh Steelers beat the Seattle Seahawks.

I'm not a fan of any sport and don't know anything about Gridiron but one of my American friends invited a few of the HPS first-years around so I went along just to be social. There was an ad declaring Superbowl to be 'the most American thing ever', or something like that and how great it is 'whether it's your fortieth or your first'. When announced that it was my first Superbowl and they all congratulated me on becoming an American then immediately commiserated! This is very strange because Americans never use self-deprecating humour...