Countdown (game show) Stelling was confirmed as the new host, with Oxford graduate Rachel Riley in the Vorderman role. It was announced on 24 May 2011 that Stelling would be leaving the programme, and he presented his final show on 16 December 2011. On 16 November 2011, it was announced that Nick Hewer would be taking over as host, with his first show broadcast on 9 January 2012. "Countdown" quickly established cult status within British television – an image which it maintains today, despite numerous changes of rules and personnel. The programme's audience comprises mainly students, homemakers and pensioners, owing to the "teatime"
Countdown done so the launch-support computers can run automatic checks on the rocket. Under some circumstances, a countdown may be recycled to an earlier time. When that happens, launch personnel begin following the countdown checklist from the earlier point. During communications for a countdown, the launch team uses acronyms to keep channels open as much as possible. All Firing Room console positions are assigned unique 'call signs' that are used by the team for quick and positive identification of who is talking. For example, dialogue heard during the launch of a Delta II rocket carrying the Kepler Space Telescope on March