It broadcast 24 hours a day and until September 2019 featured no news bulletins or commercials with only some sponsored programming.

Chill originally had no presenters, interspersing tracks with pre-recorded links featuring messages voiced by Davinia Palmer that reinforced the laidback atmosphere of the station.

The station encouraged interaction with its listeners, who suggested new songs and artists for the playlist, as well as relaxation techniques, via the Chill website and social media.

"[5] In June 2006, Chill bid for its first analogue licence, for Bristol, citing the city's record in producing trip-hop artists such as Massive Attack, Portishead and Tricky in support of its application.

In March 2009, Chill ceased to broadcast in Leicester, Nottingham and west Wiltshire due to competition regulator compliance following the takeover of GCapMedia by Global Radio.

[7] In July 2009, Global Radio announced that Chill would lose many of its DAB slots on numerous local DAB ensembles across the UK to allow for an expansion of the Galaxy network, but would still broadcast in London, some parts of the West Midlands and central Scotland.

Rajar figures for the third quarter of 2009 showed an increase of weekly listeners by 9,000, bringing total listenership to 209,000.

In September 2015, Global Radio confirmed that Chill would return to DAB in Nottingham and Leicester, replacing XFM.