As much as I would like to see Discovery Channel air the full undoctored episodes, I don't think it would ever happen. While it may seem from our point of view on this forum that there are loads and loads of people who will appreciate the uncut version, DC has to attract an audience of hundreds of thousands of viewers every time they air the show or else they'll likely cancel it. To do this, they have to attract a whole lot of casual viewers, ones who will be flipping through the channels and park themselves on DC because it catches their eye.
Now, I can appreciate the humor and the writing of the show, but to the average american, a 7 minute review of a car called a "Vauxhall" or a "Renault" will mean absolutely nothing to them, even if the reviews are full of wit. They are cars that will never be marketed in america, and wouldn't captivate the attention of the audience of channel flippers.
In addition, the star in a reasonably priced car segment would not do well either. Talk shows in the US only survive by booking top-flight (mostly american) celebrities who will attract male and female viewers aged 18-50 in order to garner quality advertisers. I highly doubt many of those casual viewers DC needs who represent the males aged 18-50 would stop and watch top gear if they saw Jeremy interviewing Martin Clunes or Terry Wogan. Jordan, maybe...but Wogan, no.
The way DC is going about getting viewers is really the least risky (if not highest quality) direction. You show as many expensive, fast sports cars as possible so people flipping through the channels will stop and go "ooh...ferrari!" and set it to a soundtrack that viewers of Monster Garage and American Chopper would appreciate. By all measurements, a formula like that should get enough viewers to at least keep the show on the air.
So unfortunately as much as I'd love to see the original episodes aired, I doubt it would happen. But we all can send letters and hope DC will change their ways! [/i]