More people made a Friday date with Dateline


* At 8 p.m. ET, “Who Do You Think You Are?” averaged a 0.8/3 in 18-49 and 5.1 million viewers overall and ranked #2 among ABC, CBS, NBC, Fox and CW in total viewers.

* At 9 p.m. ET, “Grimm” delivered a 1.2/4 in 18-49 and 4.2 million viewers overall with its first original telecast in three weeks. “Grimm” built on its lead-in by 50 percent in 18-49 rating.  Note that “Grimm” originals have been adding 63 percent to these next-day “live plus same day” ratings when Nielsen issues “live plus seven day” results so far this season.

* At 10 p.m. ET, “Dateline NBC” (1.2/3 in 18-49, 4.6 million viewers overall) reported a three-week high in 18-49 rating and is up 33 percent week to week in 18-49 rating (to a 1.2 from a 0.9). From its first half-hour to its second, “Dateline” grew by 18 percent in 18-49 rating (to a 1.3 from a 1.1), 20 percent in adults 25-54 (1.8 vs. 1.5) and 18 percent in total viewers (5.0 million vs. 4.2 million).