TV Ratings 8/18/17: 'Big Brother' On Top, 'What Would You Do?' Steady (UPDATED)

Here are the final broadcast ratings for Friday, August 19, 2017.

photo: TVSeriesFinale

Finals Update: Repeats of MasterChef (0.5), Beat Shazam (0.4), and Blue Bloods (0.4) all adjusted down.

Time	Show	18-49 Rating	Total Viewers (In Millions)
8:00pm	Big Brother (CBS)	1.4	5.06
	America’s Got Talent (R) (NBC)	0.7	3.85
	Shark Tank (R) (ABC)	0.7	3.56
	MasterChef (R) (FOX)	0.5	1.60
	Masters of Illusion (CW)	0.2	1.02

8:30pm	Masters of Illusion (R) (CW)	0.2	0.94

9:00pm	What Would You Do? (ABC)	0.7	3.19
	Hawaii Five-0 (R) (CBS)	0.5	3.78
	Beat Shazam (R) (FOX)	0.4	1.31
	Penn & Teller: Fool Us (R) (CW)	0.2	0.94

10:00pm	Dateline NBC (NBC)	0.8	3.87
	20/20 (ABC)	0.7	3.37
	Blue Bloods (R) (CBS)	0.4	4.58

(R) = repeat

CBS preempted a MacGyver encore at 8 in favor of a Big Brother clip show (1.4). It easily crushed the competition and was only a tenth of a point off from its last Friday airing back in July. The powerhouse reality series led into drama repeats (0.5/0.5).

ABC's What Would You Do? (0.7) was steady with its last original and up a tenth from last week's repeat. It led out of a Shark Tank encore (0.7) and into an original 20/20 (0.7). The latter rose a tenth from last week.

FOX had inflated repeats (0.7/0.7) that will most likely adjust down after finals.

NBC had an AGT encore (0.7) leading into Dateline (0.8). The latter rose a tenth and beat 20/20 head-on.

The CW had its normal helping of 0.2s with a mix of magic show repeats and originals.