I'm not sure whether it's a good thing when reality show producers start showing an interest in writing, but it's happened with Canada's Book TV. They covered a three-day novel writing contest that took place in a Edmonton's largest "Chapters" book store. You can see the trailor for the show here, and very dramatic it is!
I suppose anything that creates an interest in writing and writers might be a good thing. Certainly the UK's "Richard and Judy" TV show have had an Oprah-like effect for the authors they feature on their afternoon talk series. The writer whose novel they covered recently shold 46,000 copies of his book in the following seven days!