Warning: Stop reading if you don’t want to know what happened on the season finale of ‘Glee’! For the past three years, Finn and Rachel have fought tooth-and-nail to keep their relationship and their ...

Perhaps this season’s silliest – and most unintentionally revealing – episode of “Glee” came last month when singing student Sam pretended to be his slicker, smarter (and nonexistent) twin brother.