It's not "Nottinham". It's "No'ingem".

I find missing 't's in the middle of words really irritating. My daughter does it all the time. Now it's often heard on the BBC. At the same time, I don't get too upset about the final 'g' being left off "-ing" words, which probably means that I do all the time without thinking.

But, yes, the BBC, while celebrating regional accents, should guard against sloppy speech.

DC