Wikipedia
HolbyBlue
Holby Blue (originally styled HolbyBlue) is a British police drama series that aired on BBC One from 2007 to 2008. Produced by the BBC, Red Planet Pictures and Kudos for BBC One, it is a spin-off of the BBC One medical drama Holby City, itself a spin-off of the long-running series Casualty.
The first series was eight episodes long, and broadcast between 8 May and 26 June 2007. A second series of twelve episodes broadcast from 20 March to 5 June 2008. The BBC announced in August 2008 that due to poor ratings, they had dropped the show and it would not be returning for a third series.