NBC will offer broadcast and online viewers an advanced sneak peek at the network’s new and returning series for this Fall as Greg Grunberg of the Emmy Award-nominated hit drama “Heroes” hosts “The NBC Primetime Preview Show” — a 30-minute program showcasing an upfront look to be conveyed on a variety of media platforms beginning August 11 through September 23.

The annual Fall program will be offered to NBC’s 232 television stations (check local listings) as well as other channel entities such as USA, SCI FI, Bravo, UniHD, Chiller, mun2, MSNBC, CNBC, Sleuth, NBC2Go, on-demand and broadband. NBC stations can also run it on their websites while NBC.com will also run it as well. In addition, the program will be screened on selected United Airlines flights. It will be broadcast on the NBC Network on Saturday, September 8 (8:30-9 p.m. ET).

In addition, cable, satellite and telco affiliates can offer consumers a two-week advance screening of “Bionic Woman,” “Chuck,” “Life” and “Journeyman” in standard definition, as well as in high definition. The on-demand and broadband offering will also include behind-the-scenes segments for “Bionic Woman” and “Life”; two-minute previews of four new NBC Fall shows; a two-minute preview of “Heroes”; one exclusive scene from “The Office” and “30 Rock,” and five “Chuck” viral videos.

Among the new and returning stars that will appear on the special are Kevin McKidd, Gretchen Egolf and Moon Bloodgood (all from the new drama “Journeyman”), Damian Lewis and Sarah Shahi (both from the new drama “Life”), Brian Baumgartner and Angela Kinsey (both from “The Office”), Michelle Ryan (“Bionic Woman”), and Zachary Levi, Joshua Gomez and Yvonne Strahovski (all from “Chuck”).