3 January – 95.8 Capital FM London launches nationally and becomes a part of The Capital FM Network as part of a merger of Global Radio's Hit Music and Galaxy networks to form the nine-station 'Capital Network'.[2] Other than daily breakfast and weekday drivetime shows, the majority of Capital's London-based output will be networked.[3]
11 January – KMFM West Kent and KMFM Maidstone merge their breakfast shows, meaning all programming is shared across both stations.[6]
12 January – Presenter Pat Sharp is appointed as Smooth Radio's Weekend Breakfast presenter with immediate effect.[7] He had been presenting the show since December 2010,[8] having taken over from Graham Dene who had been standing in since Tony Blackburn's departure in October.
31 January – BBC Radio 2 announces the cancellation of its annual Electric Proms season after five years, citing financial considerations.[12]
February
1 February – It is reported that Jo Whiley will leave BBC Radio 1 after 17 years in April to move to Radio 2, where she will present an evening show from Mondays to Wednesdays, replacing The Radcliffe and Maconie Show. Radcliffe and Maconie will, in turn, move to 6 Music while Whiley's Radio 1 show will be taken over by Huw Stephens.[13]
18 March – BBC Radio 1 presenter Chris Moyles breaks the record for presenting the longest radio programme, after hosting a 52-hour live broadcast in aid of Comic Relief 2011.[15]
Due to budget cuts, transmission of the BBC World Service on 648 kHz MW ends. The transmissions, from the Orfordness transmitting station in Suffolk, have been on air since 1982 and had provided English-language coverage of the World Service to much of northern Europe.
28 March – Celador Radio files a format change request for The Coast to air classic and contemporary rock instead of adult alternative.[17]
April
1 April – Comedian Rob Brydon presents Ken Bruce's Radio 2 show, impersonating the Scottish presenter throughout the two-and-a-half-hour programme as an April Fool's joke.[18]
3 May – BBC Radio 3 resumes the broadcasting of regular live concerts. This overturns the much criticised 2007 decision to replace almost all of its live broadcasts with pre-recorded concerts.[21]
9 May – It is confirmed that Irish broadcaster Ryan Tubridy will join Radio 2 for eight weeks to present Graham Norton's show from 23 July while Norton is away.[22] He returns to the network later in the year to cover for Ken Bruce over the Christmas period.[23][24]
June
22 June – Radio 2 hosts 2DAY, a day of 12 hour-long programmes to promote some of the station's specialist output normally reserved for evenings and weekends.[25][26]
July
21 July – The BBC confirms that Andy Parfitt will step down as Controller of Radio 1 after 13 years to pursue other opportunities from the end of the month. Parfitt will also relinquish the roles of Controller of BBC 1Xtra and the BBC Asian Network.[27]
28 August – Alan Titchmarsh presents the final edition of Radio 2's Melodies For You. The programme – dedicated to popular classic and light music, and part of the station's schedule since the 1960s – has been scrapped as the station wishes to change its format for representing the genres.[29]
August – The forces broadcaster BFBS ceases transmissions in Belize.[30]
On the 10th anniversary of the September 11 attacks on the United States, Smooth airs a documentary featuring British people who were living in New York City at the time of the attacks. This is followed by live coverage of the remembrance service from Ground Zero, the former site of the World Trade Center, which was destroyed in the attacks.[33]
September – Simon Bates presents a week of programmes from South Australia as part of a promotion in which Smooth Radio gives away a holiday to the state.[34]
October
25 October – The BBC announces that, from next season, it will axe the second commentator for football matches as a cost-cutting measure.[35]
31 October – The Broadcasting Standards watchdog Ofcom issues radio stations with a reminder of the rules regarding the airing of songs with expletive lyrics after several recent instances of such songs being played.[37]
November
1 November –
GMG Radio launches a dedicated station playing nothing but Christmas music, under the brand "Smooth Christmas". The station has no news or advertisements but promotes Smooth Radio and broadcasts until 27 December 2011.[38]
The radio industry news website Radio Today publishes a preview edition of Radio Today: The Magazine with plans to launch it as a monthly magazine from 2012. The edition is distributed to delegates at the 2011 Radio Festival.[40]
22 November – Blind actor Ryan Kelly, who plays Jack 'Jazzer' McCreary in Radio 4's The Archers is the inaugural recipient of the Tyzack Award at the Ability Media International awards. The award recognises writers, producers and performers who "transcend the stereotypical".[41]
December
2 December – The BBC apologises after a BBC Radio Scotland presenter is heard to swear on air during a morning news bulletin when a technical glitch led to the words "the Borders" being repeated 37 times.[citation needed]
7 December – BBC Radio 1 announces changes to its dance music schedule from April 2012. Skream & Benga, Toddla T, Charlie Sloth and Friction will take over from Judge Jules, Gilles Peterson, Kissy Sell Out and Fabio & Grooverider. This will include a shuffle of most late night shows Monday to Saturday to incorporate the new line up. A new rota of DJs for 'In New DJs We Trust' will also be announced in early 2012[42]
23 December – GMG Radio confirms plans to launch a station dedicated to music from the 1970s on trial basis. Smooth 70s will replace Smooth Christmas on the Digital One platform from 27 December.[46]