Casualty (TV series) 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, set in the same hospital. "Casualty" is shown weekly on a Saturday evening, which has been its time slot since the early 1990s. "Casualty"s exterior shots were mainly filmed outside the Ashley Down Centre in Bristol from 1986 until 2002 when they moved to the centre of Bristol for just over nine years. In 2011, "Casualty" celebrated its 25th anniversary; following that, for the Bristol finale, they filmed the
St Peter's Hospital, Chertsey included the accident & emergency department, the ITU and the orthopaedic unit was opened by Prince Edward in the summer of 1998. The Duchess of Kent Wing was extended to include two further wards in 2006. The hospital radio station, Radio Wey started broadcasting to patients and staff from St. Peters in 1965 and today also serves an area beyond the hospital's main catchment area. St Peter's Hospital is SSW of Chertsey railway station and has regular bus services to a wide range of towns. A free shuttle service is also available for patients, staff and visitors between Ashford Hospital