BBC Radio 1 Show' was voted 'Best Radio Show' five years running by readers of a national music publication, and was then axed by controller Derek Chinnery. Annie Nightingale, who joined in 1970, was Britain's first female DJ and is now the longest serving presenter, having constantly evolved her musical tastes with the times. On Thursday 23 November 1978 the station moved to two new medium wave frequencies (275m and 285m) which allowed a major increase in transmitter powers and improved coverage of the UK. 247 metres was passed to Radio 3. The station was on medium wave only until the early 80s,
BBC Radio 1 of callers favoured it. Radio 1 has a public service broadcasting obligation to provide news, which it fulfills through Newsbeat bulletins throughout the day. Shared with 1Xtra, short news summaries are provided roughly hourly on the half-hour during daytime hours with two 15-minute bulletins at 12:45pm and 5:45pm on weekdays. The main presenter is Ben Mundy, with Roisin Hastie presenting during Radio 1's breakfast hours. In recent years Radio 1 has utilised social media to help reach a younger audience. Its YouTube channel now has over 5 million subscribers. The highest viewed videos on the channel are predominately live music