What online extension of 30 Rock did NBC announce on April 2, 2008?

NBC announced 30 Rock 360 as an online extension of the 30 Rock series.

The announcement came on April 2, 2008, when NBC Digital Entertainment outlined its summer and fall programming plans. Rather than simply stream episodes, 30 Rock 360 was designed as an interactive expansion of the show’s fictional media world and characters.

A central feature was Jack Donaghy’s online business school, branded “Jack U.” Visitors could read Jack’s blogs and upload their own business-advice videos. The project also invited fans to submit sketches for TGS with Tracy Jordan and perform skits from the fictional program.

The extension included the interactive “Ask Tina” feature, in which viewers could submit questions for Tina Fey and receive video answers. That made 30 Rock 360 an early example of a television series using web content to deepen audience participation rather than merely advertise the broadcast show. “Jack U” can cause confusion because it was a feature within 30 Rock 360, not the name of the overall online extension.