I watch the food network all the time. You know why? Because food is non-political. It's a positive vibe only type of programming: every place guy ferrari goes to is delicious, every dish Gianni cooks is wonderful, and I don't have to deal with the fear mongering that permeates literally every other channel
I generally agree with this. Put another way there's a lot to foodie culture and interest in the Food Network that doesn't involve cooking pre-kitted but relatively complicated meals on weeknights.
I suppose there's an argument to be made that none of these services have really broken out because no one has wrapped sexy celebrity-based marketing around their offering. (Added: And some of them have paired with celebrity chefs.) But I'm skeptical. Most of them do the localvore farm to table thing in spades. I doubt that celebrity chef endorsements and videos and a major missing ingredient.