This sounds great and good luck! If I may offer some constructive criticism:
Drop the "Grok" name, or at least, try not to focus on cave-man-like perspectives. While it was a useful archetype for Sisson to portray stories through, the name tends to conjure up stereotypes of dim-witted, meat-centric, uncivilised cave-men. This puts off many viewers, and I believe it makes the paleo concept easily dismissable by some. Perhaps include terms such as "ancestral" or "evolutionary biology"
It would be great if you guys could become representatives of the paleo movement in general, instead of seemingly advertising for a particular website...however great that website may be.
One difference between paleo and other diets is that it is a strictly science based pursuit of optimal health, with a (useful) ancestral viewpoint.