Sitcoms should "NEVER" be "to be continued..."

The impetus for the above assertion is last night's Scrubs double pak. They were rolling off their usual hour of hilarity when they decided to get serious (or at least lead us to believe they're getting serious) on us. Why? I mean, between JD's interaction with the interns, the Janitor's bird and the unholy alliance of Cox and the janitor, there was more than enough Scrubs goodness to go around.

NBC already has one medical drama; it doesn't need two.