Combat Hospital was a Canadian-British medical drama television series, filmed in Toronto, that debuted on Global in Canada on 21 June 2011. In the United States, it aired on ABC. Its final episode was broadcast on 6 September 2011. The series was known for a time by the working title The Hot Zone before reverting to its previous title, Combat Hospital.

ABC announced 24 October 2011 that it would not be renewing Combat Hospital for a second season. On 16 December, Shaw Media confirmed that Combat Hospital would not be renewed for another season due to their inability to find a new broadcast partner after ABC opted not to continue with the series earlier that fall.

Casualty, stylised as CASUAL+Y, is a British medical drama television series that airs weekly on BBC One, and the longest-running emergency medical drama television series in the world. Created by Jeremy Brock and Paul Unwin, it was first broadcast on 6 September 1986, and transmitted in the UK on BBC One. The original producer was Geraint Morris.

The programme is based around the fictional Holby City Hospital and focuses on the staff and patients of the hospital’s Accident and Emergency Department. The show has very few ties to its sister programme Holby City which began as a spin off from Casualty in 1999 and is set in the same hospital, but upstairs. The show’s plots and characters occasionally crossover between the two programmes, but this is rare, and each show can easily be followed without having to watch the other. Casualty is shown weekly on a Saturday evening, which has been its time slot since the early 1990s.