Greenwich Time Signal a station jingle during Jakki Brambles' early show and Simon Mayo's breakfast show. This was not strictly crashing the pips as they were not intended to be, or mistaken for, an accurate time signal. At 8 am on 17 September 2008, to the surprise of John Humphrys, the day's main presenter on the "Today" programme, and Johnnie Walker, who was standing in for Terry Wogan on Radio 2, the pips went adrift by 6 seconds, and broadcast seven pips rather than six. This was traced to a problem with the pip generator, which was 'repaired' by switching it off and
BBC Radio 4 programmes, many of which have been broadcast for over 40 years. Most programmes are available for four weeks after broadcast as streaming audio from Radio 4's "listen again" page and via BBC iPlayer. A selection of programmes is also available as podcasts or downloadable audio files. Many comedy and drama programmes from the Radio 4 archives are rebroadcast on BBC Radio 4 Extra (formerly BBC Radio 7). Due to the capacity limitations of DAB and increasing sport broadcasts on BBC Radio 5 Live Sports Extra, BBC Radio 4 DAB has to reduce its bit rate most evenings, such that after