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 Sheffield transmitters). The Emley Moor transmitter broadcasts DTR for freeview TV channel 734 for Yorkshire, Derbyshire and parts of Lincolnshire on UHF 47-682 MHz the BBCA multiplex. Other local TV transmitters such as Crosspool relay their signal from Emley Moor. The majority of the station's programming is produced and broadcast from Sheffield. During off-peak hours, BBC Radio Sheffield carries regional programming for Yorkshire and the North Midlands from sister station BBC Radio Leeds, which also originates the networked evening shows for BBC Local Radio on weekday evenings (produced independently by Wire Free Productions). During the station's downtime, BBC Radio Sheffield simulcasts