| Rank | Network | Website | Average Market Share |
| 1 | FOX | American Idol | 14.01% |
| 2 | NBC | Deal or No Deal | 13.33% |
| 3 | ABC | Dancing with the Stars | 7.33% |
| 4 | CBS | Survivor: Micronesia | 4.78% |
| 5 | FOX | America’s Most Wanted | 3.86% |
| 6 | NBC | Heroes | 2.98% |
| 7 | ABC | Lost | 2.67% |
| 8 | NBC | The Biggest Loser | 2.22% |
| 9 | NBC | The Office | 2.07% |
| 10 | ABC | Grey’s Anatomy | 1.81% |
| Source: Hitwise | |||