National Geographic channels ‘I Didn’t Know That’ destroys four cars in a huge stunt for their programme about concrete. Media Dog were brought in to film a car explosion and a concrete bomb being dropped on to a car for their biggest ever stunt. Media dog used eight cameras, including three disposable crash cameras for this ‘one take only’ situation. We only managed to wreck one of the three disposable lipstick sized cameras, next time we promise we will try harder. Check out the results on the ‘I Did’t Know That’ podcast.