• by Shankar Gupta , September 11, 2006

Two new NBC fall shows, the sitcom "Twenty Good Years" and Aaron Sorkin's "Studio 60 on the Sunset Strip," will debut on AOL one week before their first air dates.

Both shows will run online without ads. 'Studio 60' will go live on AOL on today, while 'Twenty Good Years' debuts online on Oct. 4.

With AOL's entry, all three major portals are now streaming episodes of this fall's new TV shows before their broadcast debuts. Yahoo will offer streams of the new CBS show "Jericho" and NBC's "Heroes" before their air dates, while MSN will debut three shows from The CW Network--"Runaway," "Everybody Hates Chris" and "Veronica Mars"--one week before their air dates.

Along with the online premieres, AOL's television section will feature information on all 82 prime-time shows in the fall season, including video previews, spoilers, cast info, galleries, quizzes, articles and a sortable schedule for the fall lineup.

Separately, Fox also added another TV show to its online roster Friday, the network began streaming the first seven minutes of the season premiere of the 18th season of "The Simpsons" on several of Web sites, including MySpace.com, Fox.com, and IGN TV.