I've never watched his show, so I visited his web site and watched his slideshow on GMO food. Here are quotes from it and my impressions:
Slide 1 of 7 starts with a discussion of hybrids
these practices were limited to combining the traits of organisms only within the same species
Wrong. Hybridizing across species is common, e.g. a Mule is a cross between a horse and a donkey.
Slide 2 of 7 titled "Advantages" it starts with a short discussion of why GMO foods were created but slips in a zinger
There have been a great number of studies tracking the effects of GMOs on animals. Most of these studies indicate that GMOs are safe to consume.
Fear mongering much? Some studies show GMO foods are NOT SAFE TO CONSUME??? OMG!
Slide 3 of 7 downside of GMO food
Researchers fear that the health risks may include: exposure to allergens, antibiotic resistance, endocrine disruption, reproductive disorders and accelerated aging.
Researchers "fear"? What did their research actually conclude? More fear mongering with no facts.
Slide 4 of 7 - titled "What Should I Look Out For? "
it is particularly important to avoid packaged foods with corn and soy if you are trying to cut GMOs out of your family’s diet
Without coming right out and saying you should avoid GMO food, he launches into instructions on how to avoid them. The assumption is obvious.
Slide 5 of 7 - titled "How Can I Avoid GMOs? "
it is difficult for consumers to make educated choices about the foods they are purchasing
Essentially a repeat of Slide 4, I assume this is to reinforce the implied message. Also leads into Slide 6...
Slide 6 of 7 - titled "Are GMOs Labeled?
Many companies like Whole Foods have partnered with the Non-GMO Project to undergo extensive third-party verification over their non-GMO claims. The Non-GMO Project is the only North American organization offering independent testing and GMO controls
The first sentence in that quote doesn't seem to go with the second. But this is mostly a continuation of slides 4 and 5 - he doesn't say you should avoid GMO but he gives detailed instructions on avoiding GMO.
Slide 7 - there really isn't a slide 7 - this is all advertising.