James Hibberd

By one measure, the biggest hit of premiere week was NBC’s “Deal or No Deal.”

The game show’s Web site had more traffic than any other broadcast network show, followed by ABC’s “Dancing With the Stars,” NBC’s “Heroes” and ABC’s “Grey’s Anatomy.” The list of most-visited series Web sites for the week ending Sept. 29 was released this morning by measurement service Hitwise, which is tracking the Web sites for 120 series.

The “Deal” site gives viewers a chance of winning prize money, while “Dancing” encourages online voting. The site for Fox’s modestly rated “America’s Most Wanted,” where viewers can report tips on missing fugitives, also made the top 10.

Among scripted shows, younger-skewing and serialized programs were more likely to get traffic. In addition to “Heroes,” there’s ABC’s “Grey’s Anatomy,” NBC’s “The Office” and “Bionic Woman.” The CW’s “Gossip Girl” broke into the Top 10 despite being one of the lowest-rated shows on broadcast. ABC’s “Lost,” which has interactive elements to engage fans until the show returns next year, was ranked No. 8 even though the program isn’t currently airing.

Missing from the list: Top Nielsen-rated shows like CBS’ “CSI” and “Without a Trace,” ABC's “Desperate Housewives” and Fox's “House.”

By network, NBC.com received the most traffic, followed by ABC, CBS, Fox and The CW. Fox and The CW were nearly tied.

Here's the Top 10 sites during premiere week, according to Hitwise: