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) the world of music and entertainment, and Annie's New Music Forecast - in which Annie showcased three new tracks to check out that week. The second series ran until December 2008. A third series ran from January to June 2009, and added comedian Holly Walsh to the presenting team. The theme song of the show is "Leap of Faith" by Hadouken!. 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