<P> The series is filmed on location in Mudgee, a town in the Central West of New South Wales, while the entirety of the hospital scenes are shot in the Sydney inner - city suburb of Rozelle, which is located in the city's inner - west . The filming of Knight's home was shot in Sydney's south - west section in the town of Camden . The regional setting for the series has proved to be beneficial for narrative and production purposes . It has been stated that in addition to $100,000 worth of support from the Regional Filming Fund, the regional setting delivers a unique authenticity to the series that it would otherwise lack . </P> <P> The theme song is a cover version of the American band Canned Heat song Going Up the Country, performed by Patience Hodgson of the Australian indie / alternative rock band The Grates . The song is not available for international airings of the series and the opening theme is replaced with the same instrumental music which is used over the end credits . </P> <P> Doctor Doctor is broadcast on the Nine Network on Monday nights at 8.40 pm . It is also broadcast later in New Zealand on TVNZ 1 . </P> <P> The series, which is retitled as The Heart Guy, airs on PayTV broadcaster, Sky Deutschland for Germany, Austria and Switzerland, and in the UK on Drama . In Norway the series are available on TV2 Sumo . The program is also available in the United States with the title The Heart Guy, where new episodes premiere on the streaming network Acorn TV </P>

Who played penny's sister in doctor doctor