The start of the 2011-2012 television season is just weeks away (things officially kick of Monday, September 19th) which means it is time for the networks to unveil their fall preview specials. So far, it looks like ABC, CBS, NBC and The CW have preview specials in the works, with NBC's already available online. Both CBS and The CW are actually airing their specials in prime time. As always, check your local listings because individual affiliates may be airing some of these specials at random times during the next few weeks, as well as cable channels. Read about the history of the fall preview special here.
Zap2it has a listing for this special, with the following summary: "A sneak peek at new fall dramas includes 'Pan Am,' 'Charlie's Angels,' 'Revenge' and 'Once Upon a Time'." It is airing in my ABC affiliate on Saturday, September 3rd but I haven't found any information about it online. It does not appear to be airing nationally.
The cast of The Big Bang Theory will host this half-hour special, airing Thursday, September 8th from 8:30-9PM. According to this press release, it will be available On Demand through a variety of cable systems. Additionally, CBS affiliates will be able to repeat the special after its initial broadcast.
Whitney Cummings and Chris D'Elia (stars of new sitcom Whitney) co-host this half-hour special, which was released on August 11th and will not be broadcast nationally. From an NBC press release:
The annual Fall program will be offered to NBC’s 234 television stations (check local listings) as well as other channel entities such as USA, Syfy, Bravo, UniHD, Chiller, mun2, MSNBC, CNBC, Oxygen, Sleuth, Xfinity, E! Entertainment Television, mun2, NBC2Go, on-demand and broadband. NBC stations will also make it available on their websites while NBC.com will feature it as well. In addition, the program will be screened on selected American Airlines flights (estimated to be shown on approximately 11,000 flights).
You can watch it online at NBC.com (but not Hulu, it seems). I've embedded the NBC.com video below:
The "FOX Fall Preview Special" is an affiliates-only special that began airing the weekend of August 27th/28th.
Maggie Q and Kristoffer Polaha will host a 45-minute special entitled "The CW 2011 Fall Preview Special" on Monday, September 12th from 9:15-10PM. A press release is available here.