Friday TV Ratings 3/26/21: Shark Tank Wins Another Night, Blue Bloods Grows on Magnum PI and MacGyver (UPDATED)

Preliminary Analysis: ABC's 'Shark Tank' (0.6) and '20/20' (0.5) duo took back their lead after 'NCAA Basketball' dominated last week. Both programs held steady, with 'Shark Tank' returning from a one-week break. CBS had a rough time competing with the alphabet network as 'Magnum PI' (0.4) ticked down in the 9pm slot. 'MacGyver' (0.4) and 'Blue Bloods' (0.5) matched their lows at 8 and 10 respectively. NBC went even lower than that as 'The Blacklist' (0.3) and 'Dateline' (0.3) declined by one-tenth. 'WWE Smackdown' (0.5) also shed a tenth on Fox. The CW had a pair of 'Whose Line' encores (0.1/0.1) and an original 'Penn & Teller' (0.1).

Finals Update: Shark Tank (+0.1), WWE SmackDown (+0.1) and Magnum PI (+0.1) adjusted up.

Time	Show	18-49 Rating/Share	Viewers (mil)	Network
8 PM	Shark Tank	0.65/5	4.02	ABC
	WWE SmackDown	0.57/4	2.19	Fox
	MacGyver	0.44/3	4.31	CBS
	The Blacklist	0.31/3	3.29	NBC
	Whose Line Is It Anyway? (R)	0.12/1	0.68	The CW
8:30 PM	Whose Line Is It Anyway? (R)	0.12/1	0.67	The CW
9 PM	20/20	0.50/4	3.00	ABC
	Magnum PI	0.48/3	5.62	CBS
	Dateline NBC	0.33/3	2.94	NBC
	Penn & Teller: Fool Us	0.11/1	0.74	The CW
10 PM	Blue Bloods	0.48/4	6.39	CBS