Holby City cast as Greg Douglas in series twelve. "Holby City" and "Casualty" are both set in Holby City Hospital, in the fictional county of Wyvern, in the southwest of England close to the Welsh border. The city exterior is represented by Bristol, though "Holby City" is filmed at BBC Elstree Centre in Borehamwood, Hertfordshire. The "Casualty" set in Bristol was not large enough to encompass the surgical ward and operating theatre required for "Holby City", and as a result, some crossover scenes in the first episode had to be shot twice, first on the "Casualty" set and then again at Elstree,
General Hospital (UK TV series) productions to fill in the extended schedules. Among the first of these shows, which were aimed at giving advertisers access to housewives, were the long-running rural soap "Emmerdale Farm" (YTV) and the twice-weekly medical drama "General Hospital". Set in a fictional Midlands town, the series followed the romantic and professional lives of its doctors and nurses. While the location and the characters names had been changed, in most other respects "General Hospital" was almost identical to its predecessor, "Emergency – Ward 10", a deliberate attempt to recreate its success. In 1975, after 270 twice-weekly episodes, "General Hospital" was given a