Spotted Ratings, Wednesday 2/16/11

Another brutal day on broadcast, with almost everything plunging double digits from its last original. A lot of the 9:00 hour shows owe that in large part to facing Idol this week but not last week. Survivor joins a long tradition of unscripted shows getting pretty badly hurt by facing Idol.

	A18-49	Share	Lead	Last	LeLa	Comp	HUT	bcShr	Avg	Rank
The Middle	2.3	7	n/a	-12%	n/a	12.7	35	15	-13%	14/15
Better with You	1.8	5	-22%	-14%	-12%	12.6	35	13	-20%	15/15
Modern Family	4.3	12	139%	-16%	-14%	12.6	35	25	-8%	12/15
Mr. Sunshine	2.6	7	-40%	-30%	-16%	12.6	35	17	-30%	2/2
Off the Map	1.5	4	-42%	-21%	-30%	5.5	34	21	-25%	6/6
Survivor	3.2	9	n/a	n/a	n/a	11.5	35	22	n/a	1/1
Criminal Minds	3.2	9	0%	-11%	256%	12.9	35	20	-9%	12/15
Criminal Minds: Suspect Behavior	3.3	10	3%	n/a	n/a	3.7	34	47	n/a	1/1
Minute to Win It	1.0	3	n/a	-41%	n/a	14.4	35	7	-48%	10/10
Law & Order: SVU	2.2	7	120%	-15%	-41%	4.8	34	31	-16%	13/16
American Idol Wed	8.2	23	n/a	-2%	n/a	7.2	35	53	-11%	5/5
Nikita (oR)	0.3	1	n/a	n/a	n/a	14.4	35	2	n/a	1/1
Vampire Diaries (oR)	0.3	1	0%	n/a	n/a	15.8	35	2	n/a	1/1

KEY
A18-49 - From Nielsen. Adults 18-49 rating. Percentage of US TV-owning adults 18-49 watching the program.
Share - From Nielsen. Adults 18-49 share. Percentage of US TV-watching adults 18-49 watching the program.
Lead - Calculation. Percent difference from lead-in program.
Last - Calculation. Percent difference from previous original episode.
LeLa - Caclculation. Percent difference between the show's lead-in and its lead-in for the previous original episode.
Comp - Calculation. Competition. Total rating of all broadcast programs airing against it.
HUT - Calculation. Phrase commonly known as "Households Using TV," but in this case it's actually "Adults 18-49 Using TV." Percentage of US TV-owning adults 18-49 who are watching any TV in that timeslot. A rough approximation based on all ratings/shares in the timeslot. More on this later.
bcShr - Calculation. Broadcast share. Percentage of US national big-5 broadcast TV-watching adults 18-49 watching the program.
Avg - Calculation. Percent difference from the show's average demo for previous original episodes this season.
Rank - Calculation. The rating's rank among the show's original episodes that have aired so far this season.

oR = Out-of-timeslot repeat. I plan on doing the ranking/average things with repeats, but only in-timeslot repeats. (Will become more applicable once we're out of sweeps.)

Will probably develop more disclaimers if this develops further, but the one that jumps out for now is that the stats in blue will be less accurate because for now I'm counting every program as if it maintains that same rating throughout each half-hour of the broadcast. That is almost always not the case in reality.

More Wednesday Spotted Ratings.