I should say upfront, that I am still very much a fan of Chris Hopkins and Russ Spencer, but they currently have some extremely hot competition in the form of Bid TV's own Peter Simon.
Like Chris and Russ, he is extremely chirpy given the circumstances, but Peter has the added appeal of always falling over. As you'll see from a brief glance at this YouTube search page.
One of the best Peter Simon clips can't be embedded, so to see it you'll have to follow this link.
And here are some other good ones. Enjoy.