You're obviously not following the links that I've posted, specifically the one I posted in post #222. I'll repost it..
In relation to the claims made on 'The Mystery of the Crop Circles', you should click on the following link..
THE GREAT A&E AND DISCOVERY CHANNEL CROP CIRCLES HOAX.
In order to avoid being accused of "flooding the FR servers", I'll leave it to you to follow the links. I will paste a short excerpt from the link however..
Researchers were conned into doing 'unbiased' interviews and submitting research for documentaries that, at the time, were portrayed as fair-minded attempts to broadcast a balanced view of the phenomenon. Once these stations had the necessary material, the producers were apparently told to blatantly ignore the bulk of the factual data and instead, through the cunning use of selective editing techniques, portray the whole phenomenon as the work of pranksters and hoaxers such as Doug and Dave.