Episodes from eleven TV shows owned by NBC, Sci-Fi and USA Network are now available for $1.99 on iTunes Music Store.

NBC Universal and Apple today announced an unprecedented lineup of new primetime, cable, late-night and classic TV shows, including primetime hits such as “Law & Order” and late-night favorites such as sketches from “The Tonight Show with Jay Leno” on the iTunes Music Store (www.itunes.com). iTunes now offers more than 300 episodes of 16 popular TV shows for viewing on a computer or iPod. Customers have purchased and downloaded more than three million videos since their debut on October 12, making the iTunes Music Store the world’s most popular video download store.

NBC Universal programming now available on the iTunes Music Store spans from the 1950s to the present, including NBC’s “Law & Order,” “The Office,” “Surface,” “The Tonight Show with Jay Leno,” “Late Night with Conan O'Brien,” the USA Network’s Emmy Award-winning “Monk” and Sci-Fi Channel’s “Battlestar Galactica” as well as classic TV shows including “Alfred Hitchcock Presents,” “Dragnet,” “Adam-12” and “Knight Rider,” on the iTunes Music Store beginning today. Customers can purchase and download their favorite shows, including current shows the day after they air on TV, and watch them on their computer or iPod. The NBC Universal programs will be available in newly designated areas of the iTunes Music Store featuring the NBC Universal brands, including the NBC network, Sci-Fi Channel and the USA Network.

“We’re thrilled to expand the iTunes video catalog with 11 popular TV shows from NBC, USA Network and the Sci-Fi Channel,” said Steve Jobs, Apple’s CEO. “In our first two months we’ve sold more than three million videos, and have expanded our TV catalog from five shows to 16 shows.”

You can bet the phones are ringing at CBS and Fox today. And Paramount. And Sony. And...