The only thing the left will accomplish is to prove to the producers of the show that it is going to get HUGE ratings. No way they’ll drop a guaranteed success.
To sign the petition
http://www.ipetitions.com/petition/sarahpalinsalaska/
Unfortunately, they ask for a donation afterward, but I just backed off ...
They are nuts and it will not work. Discovery looked at the ratings everytime Sarah is on TV and knows that they will have many more people than sign a silly letter watching anything she does on TV.