NBC’s Grimm this post-Thanksgiving Friday drew 5.1 million total viewers and a 1.2 demo rating, dipping 6 percent and a tenth week-to-week.

Constantine — on the heels of this bit of bad news — led out of that with 3.2 mil and a 0.9, down 9 percent and two tenths.

Dateline opened NBC’s night with 7 mil and a 1.3, topping all of Friday in both measures.

Over on CBS, The Amazing Race did 5.3 mil/1.0, down 12 percent and a tenth.