The Best English-Language TV Shows Ever

I’m producing a list of the best English-language TV shows for my Dutch girlfriend.
I am indebted to each and every one of you for your contributions.  You rock!  Please sign your suggestions (or existing suggestions you concur with) using your Twitter ID (or with a URL) and please, please, please: share widely (http://bit.ly/8Jrlwv).
(Any and all submissions are welcome. Bonus points for those thick with satire.  A ‘Best of’ list with the 15 top picks will grace the inbox of my girlfriend soon.)