He went to British Columbia, the United States and Mexico, working variously in such jobs as a rancher, a gold miner and even as an extra in Hollywood films, before in 1915 returning to the UK due to the First World War.
Despite the tight schedule, Cock and his team were able to prepare several sample programmes, and the Radiolympia event was a great success in advertising the potential of the new medium and encouraging the audience to purchase sets in the run-up to the launch proper.
On 2 November 1936 that launch took place, the new television service broadcasting in theory only within a twenty-five-mile radius of Alexandra Palace, although in practice the transmissions could be picked up a good deal further afield than this.
Major live news events also began to be covered – BBC television cameras were present when Neville Chamberlain returned from Munich to deliver his infamous "peace in our time" speech in October 1938.
This increasingly varied and ambitious schedule put together by Cock and his small but inventive team of producers meant that television very quickly grew in popularity, despite at the time being an expensive luxury limited to the London area.