Wednesday TV Ratings 8/9/23: Superfan Flatlines in Series Premiere, Big Brother Ticks Down, Food Stars and The Wonder Years Rise (UPDATED)

Ratings Analysis: CBS's 'Superfan' (0.22) proved to be a complete dud on premiere night, retaining just 35% of its 'Big Brother' lead-in (0.63, -0.02 from Sunday). In the 10 p.m. hour, a rerun of 'So Help Me Todd' (0.14) placed third in its time slot. On Fox, 'MasterChef' (0.34, 0.00) held even and led into a rising 'Food Stars' (0.22, +0.03). NBC's 'LA Fire & Rescue' (0.25, +0.04) climbed higher for its season finale and led into repeats of 'Chicago Fire' (0.21) and 'Chicago PD' (0.19). ABC sitcom 'The Wonder Years' (0.23, +0.02) grew by two-hundredths when compared to last week's original. The alphabet network also reran 'Judge Steve Harvey' (0.28), 'Abbott Elementary' (0.16), and 'America's Funniest Home Videos' (0.15). Mystery drama 'Nancy Drew' (0.03, -0.01) lost a hundredth on the CW, but 'Riverdale' (0.04, +0.01) grew by one.

Finals Update: All shows held their preliminary ratings.

Time	Show	18-49 Rating	18-49 Share	Viewers (mil)	Network
8 PM	Big Brother	0.63	8	3.26	CBS
	MasterChef	0.34	4	2.11	Fox
	Judge Steve Harvey (R)	0.28	4	2.44	ABC
	LA Fire & Rescue (F)	0.25	3	2.53	NBC
	Nancy Drew	0.03	0	0.39	The CW
9 PM	The Wonder Years	0.23	3	1.58	ABC
	Gordon Ramsay's Food Stars	0.22	3	1.44	Fox
	Superfan (Series Premiere)	0.22	3	1.40	CBS
	Chicago Fire (R)	0.21	2	2.30	NBC
	Riverdale	0.04	0	0.22	The CW
9:30 PM	Abbott Elementary (R)	0.16	2	1.16	ABC
10 PM	Chicago PD (R)	0.19	3	2.07	NBC
	America's Funniest Home Videos (R)	0.15	2	1.16	ABC
	So Help Me Todd (R)	0.14	2	1.36	CBS