The WB network is making the entire first episode of Supernatural available on Yahoo seven days before the show's TV debut, AdAge reports(via MediaBuyerPlanner). The 40-minute-long episode will be streamed from the Yahoo TV section free of any advertising. The WB hopes most people will just sample the show online and tune in for the TV premier.

The WB's audience demographics are about the same as Yahoo's. WB's median age is 31 years old, and its viewing audience is 18-31. Yahoo's unique visitors skew slightly more male than WB's.

When the network put the entire first episode of Jack and Bobby online a year ago, some 700,000 people viewed it. The first episode was still the highest rated episode of the year.