Fast National ratings for Tuesday, Oct. 20, 2009.
 
FOX came after them with baseball, ABC's "Dancing with the Stars" in rounding into midseason form and "The Biggest Loser" still draws big demo numbers, but there was no stopping CBS' dramas on Tuesday night.FOX came after them with baseball, ABC's "Dancing with the Stars" in rounding into midseason form and "The Biggest Loser" still draws big demo numbers, but there was no stopping CBS' dramas on Tuesday night.
 
Among adults 18-49, CBS won the night with a 3.8 rating, beating NBC's 3.2 rating and the 3.0 rating for FOX. ABC's 2.3 rating was fourth in the key demographic, leaving The CW's 0.9 rating in fifth.
 
Overall, it was a CBS rout, as the network averaged an estimated 16.67 million viewers in primetime to go with a 10.5 rating/17 share. FOX and ABC were a distant second with a 6.1/10 (advantage FOX in total viewers). NBC's 5.1/8 was fourth. The CW trailed with a 1.4/2.
 
In the 8 p.m. hour, CBS got a 12.7/20 from "NCIS," which averaged 20.6 million viewers and a 4.7 demo rating. FOX's coverage of the Angels and Yankees playoff game was second with a 6.1/10. NBC's "Biggest Loser" was third overall, but second in the 18-49 demo. ABC's "Shark Tank" finale had a 4.0/6, a series high. The CW's "90210" did a 1.7/3, its biggest audience since the season premiere.
 
"NCIS: Los Angeles" was first in the 9 p.m. hour with a 10.2/16, up comfortably from last week. ABC's "Dancing with the Stars" was second with a 9.3/14. NBC's "Biggest Loser" and FOX's baseball tied for third, though "Biggest Loser" won the hour in the 18-49 demo with a 4.2 rating, nipping the 3.9 rating for "NCIS: Los Angeles." The CW's "Melrose Place" had a 1.1/2 for fifth.
 
"The Good Wife" closed the night strong for CBS with an 8.6/15 in the 10 p.m. hour. The CBS drama also won the hour in the 18-49 demo with a 2.7 rating. ABC's "The Forgotten" was second with a 5.0/8. As usual, that left "The Jay Leno Show" in fifth.
 
All ratings information comes from preliminary Fast National Nielsen data, which includes live and same-day DVR viewing. All numbers are subject to change, particularly in the case of live events.