are holby city and casualty set in the same hospital
Holby City Holby City was created by Tony McHale and Mal Young as a spin-off from the BBC medical drama Casualty, which is set in the emergency department of the fictional Holby City Hospital.[4][5] Young wanted to explore what happened to patients treated in Casualty once they were taken away to the hospital's surgical wards.[6] While Casualty's scope is limited to "accident of the week" storylines about patients entering hospital, Holby City allowed the possibility of storylines about long-term care, rather than immediate life and death decisions.[7] The series was commissioned by BBC One Controller Peter Salmon, and began airing on BBC One on 12 January 1999.[8][9]