Grimm airs its season finale tonight. The show's ratings have risen a bit since it moved from Fridays to the Post-Voice timeslot on Tuesdays. Last week, it scored a 1.7 adults 18-49 rating, down from a 1.8 the prior week. Tonight it faces off against the finale of Dancing With the Stars and an NCIS repeat on CBS. So how do you think Grimm will do? Make your predictions below.