BBC Television renamed BBC1 in 1964, after the launch of BBC2 (now BBC Two), the third television station (ITV was the second) for the UK; its remit, to provide more niche programming. The channel was due to launch on 20 April 1964, but was put off the air by a massive power failure that affected much of London, caused by a fire at Battersea Power Station. A videotape made on the opening night was rediscovered in 2003 by a BBC technician. In the end the launch went ahead the following night, hosted by Denis Tuohy holding a candle. BBC2 was the first
BBC Switch BBC Switch BBC Switch was the brand for BBC content aimed at UK teenagers. The brand launched on Saturday 20 October 2007 on BBC Two and ceased broadcasting on 18 December 2010. It included a block of television programmes on BBC Two, an online portal, and programming on the BBC's youth radio station, BBC Radio 1. It was BBC Two's second programming block aimed at teenagers, following on from DEF II. Four programmes were originally shown as part of BBC Switch on Saturday afternoons on BBC Two. "Sound" was a weekly music entertainment and chat show presented by Annie Mac