What sitcom could come back as a drama?

[obriensg1]

So before I leave for work this morning I was wasting my time on YouTube and stumbled across episodes of a 1990 series called "The Bradys", a drama follow up to "The Brady Bunch". I'd never heard of the followup before.

Still, I do like the idea of revisiting series after a period of time (I'm a fan of the new 'Dallas' having never even watched the original), and doing them slightly more dramatic. Like how sequel TV movies to these shows sometimes were (looking at you Growing Pains)

What sitcoms do you think have the potential to come back but in a slightly more serious fashion? Why?