M*A*S*H may be dated, but it's still one of the best sitcoms of all time. You've mentioned Black Books and Spaced - those are about the only two British comedies that really made me laugh.
Um...Home Movies is pretty good. I don't recall seeing that on your list, but if it is then disregard. There was a series on years ago called Doctor Doctor, but you might have a hard time digging that up. Again, it may be a little dated.