As of 2015 it operates five radio stations in the South of England, and publishes two magazines.
[3] In October 2012, it was announced that the company would merge with Isle of Wight Radio, alongside its Beacon magazine, reuniting Arrow FM and Sovereign FM with their former sister station under TLRC.
[4] The merger involved the Isle of Wight Radio's shareholders taking shares in Media Sound Holdings, with Claire Willis and Hedley Finn joining the board.
It was confirmed that staffing would not be impacted at the station with continued broadcast from the Isle of Wight and no plans for content sharing amongst the stations, though it was stated this may be considered in future for off peak hours.
It was announced in December 2015 that the periodical publication Sussex Living, a glossy lifestyle and local news magazine, had been bought by Media Sound Holdings.