That's the range I'd give for legendary sitcoms such as Seinfeld or maybe Friends or King of Queens.
But for this season of Two and a Half Men? And this episode?
It's better than the last season, no doubt about it.
But still, the episodes seem too forced. It's no natural flow, you see the gags coming and lots of them simply fall flat.
It's (mainly) not the actors, but still the somewhat off writing.
I'd give it a solid 5...