The Wire comes close: the ends of Seasons 1 and 2 could have been a full stop. 3 less so, and I haven't finished 4 yet. Then again, since there are "only" 60 episodes total I'm going to assume without proof that it wasn't subject to the usual network demand than a good series should leave itself open to run as many seasons as demanded. To be honest I'm faintly surprised that anyone in the US but HBO still manages to make drama series worth watching.
no subject
The Wire comes close: the ends of Seasons 1 and 2 could have been a full stop. 3 less so, and I haven't finished 4 yet. Then again, since there are "only" 60 episodes total I'm going to assume without proof that it wasn't subject to the usual network demand than a good series should leave itself open to run as many seasons as demanded. To be honest I'm faintly surprised that anyone in the US but HBO still manages to make drama series worth watching.