It's official - 3 more seasons

[SpaceAnJL]

It's got to the point where it's almost embarrassing to admit to ever having watched and liked it, because of present association, frankly.

I'm not sure why they were ever made scientists in the first place - they could have been students just as easily, or as you say, stockboys. I suppose the 'humour' lies in having ostensibly intelligent adults behaving like small and frankly dim children.