Greenwich Time Signal Greenwich Time Signal The Greenwich Time Signal (GTS), popularly known as the pips, is a series of six short tones broadcast at one-second intervals by many BBC Radio stations. The pips were introduced in 1924 and have been generated by the BBC since 1990 to mark the precise start of each hour. Their utility in calibration is diminishing as digital broadcasting entails time lags. There are six pips (short beeps) in total, which occur on each of the 5 seconds leading up to the hour and on the hour itself. Each pip is a 1 kHz tone (about halfway between
Sound (BBC TV series) Sound (BBC TV series) Sound was a weekly music, entertainment and chat show broadcast by BBC2 as part of the BBC Switch teen strand. It was presented by BBC Radio 1 DJs Annie Mac and Nick Grimshaw. The show first aired in 2007 and the first series featured various bands performing out on location. A second series returned in September 2008; however, the show had been markedly revamped. It now came from a studio apartment location and featured more guest chat and less performances. It introduced new segments like Nick's desk item 'The Grimshaw Files' - a comedic look at