Fast National ratings for Tuesday, October 5, 2010.
 
After soaring to new heights with last week's special Britney Spears-themed episode, "Glee" took a big drop this week, but no so big a drop that it wasn't Tuesday's top-rated program in the networks' desired demographic.
 
Meanwhile, on a topsy-turvy ratings night, "NCIS" went up in total viewers, but down in the demo, FOX's "Running Wilde" moved onto life support and ABC's "No Ordinary Family" took a predictable Week Two drop.
 
For the night, FOX averaged a 3.3 rating among adults 18-49, edging out the 3.2 rating for CBS in the key demographic. ABC's 2.5 rating and the 2.3 rating for NBC followed fairly closely. The CW's 0.9 rating was fifth.
 
Overall, though, CBS averaged an estimated 16.11 million viewers and a 10.0 rating/16 share. ABC was a distant second with 11.21 million viewers and a 7.1/12. FOX's 8.07 million viewers and 4.8/8 were third, beating NBC's 6.25 million and 3.8/6. The CW was up from last week with 1.79 million viewers and a 1.1/2.
 
8 p.m. -- CBS dominated the 8 p.m. hour overall with 19.48 million viewers for "NCIS," its biggest audience of the season, to go with a 3.7 demo rating. FOX's "Glee" averaged a still-strong 10.97 million viewers and a 4.5 demo rating, but that was way off from the 13.26 million and 5.8 demo rating in last week's Fast Nationals. ABC's "No Ordinary Family" slipped to 8.93 million viewers and a 2.6 demo rating in its second airing. NBC was fourth with 6.47 million viewers for "The Biggest Loser." The CW's "One Tree Hill" was fifth with 1.99 million viewers.
 
9 p.m. -- ABC took first overall in the 9 p.m. hour with 16.41 million viewers for "Dancing with the Stars." CBS' "NCIS: Los Angeles" was a close second overall with 16.19 million viewers and won the hour with a 3.4 demo rating. NBC's "Biggest Loser" showed only small improvement in its usually strong second hour, averaging 7.15 million viewers. The "Glee" drop impacted FOX's comedies, as "Raising Hope" (6.27 million viewers and a 2.6 demo) and "Running Wilde" (4.07 million and a 1.8 demo) were both down. The CW's "Life Unexpected" averaged 1.585 million viewers for fifth.
 
10 p.m. -- "The Good Wife" won the 10 p.m. hour for CBS with 12.67 million viewers and a 2.5 demo rating. ABC's "Detroit 187" averaged 8.29 million viewers and a 1.8 demo rating, falling for the second straight week. NBC's "Parenthood" averaged 5.15 million viewers, slightly up from last week, and a 2.0 demo rating.
 
All ratings information comes from preliminary Fast National Nielsen data, which includes live and same-day DVR viewing. All numbers are subject to change.