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) episodes 1, 2, 3*, 4, 6*, 7*, 8*, 9*, 10*, 11*, 12*, 13*, 15*, 16*, 17*, 18*, 19*, 21*, 22*, 23*, 24*, 25*, 26*, 29, 32, 100, 126, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 258 (episodes marked with a "*" were made in colour but now only survive in Black and White). A second volume containing the first prime time series was due for release in April 2013 but did not appear. General Hospital (UK TV series) General Hospital is a British daytime soap opera produced by ATV that ran on ITV from 1972 to 1979.