I wasn't aware of how to say "nuclear" until the JibJab "This Land" cartoon. I remember Homer Simpson saying it incorrectly, I guess I heard W. Bush say it, and I didn't know that was wrong even though looking at how the word was spelled should have given me a clue. Reminds me of third grade when I was told that "route" was supposed to be pronounced "root" instead of "rout", then I later found out "rout" is the common American pronunciation. In any case there was a memorable "Whose Line Is It Anyway?" moment where Colin Mochrie mispronounces it as "root" and Ryan's probably thinking "oh, you Canadians and your silly words".
I've only been as far north as Vancouver B.C., so I don't think I've really gotten the Canadian experience, but close to the border it really doesn't seem that much different from America. Except for using the metric system everywhere, so that we initially went 50 mph when a speed limit sign actually said 50 km/h. I might like Canada's money better though, any excuse to have a loon in my pocket.
Anyway, back to British. Um... I really like their accents.