Bear Grylls is a 'survival' expert - he gets himself dropped into hopeless situations with nothing but a pocket knife and shows you how you can survive, if such a thing should happen to you. Yes he did eat the frog live - and ate it, not just bit the head off it - but the tortoise he had killed first, and made it clear that it was extremely important to kill your catches cleanly and painlessly. I don't watch Harry Hill, because I can't stand him, but no doubt he turned it into a 'gore fest', and it wasn't that at all. Bear Grylls programmes are fascinating.