title. Casualty series producer Oliver Kent commented that, while it is "fantastic" to be able to produce crossover episodes, they are logistically difficult, and it is unlikely that another Casualty@Holby City episode will be produced in the "foreseeable future". In September 2010, Holby City nurse Donna Jackson (Jaye Jacobs) appeared in Casualty, and Kent hopes that characters from the two shows will begin to crossover two or three times a year. Despite the show's end, former cast members have continued to crossover to Casualty, starting with Alex Walkinshaw as Fletch appearing on 2 April 2022 as a continuation of plot of the final episode that aired earlier in the week. In October 2022, it was confirmed Bob Barrett would appear as Sacha Levy in a 2023 episode. HolbyBlue On 27 April 2006, the BBC announced the commissioning of Holby Blue, a police procedural spin-off from Holby City created by Tony Jordan. Jordan contemplated that "soap snobs" may hold the series in disdain for using the Holby brand, but concluded: "After much thought, I remembered who I was as a writer, the joy I take from surprising an audience, by subverting expectation – and HolbyBlue was born." Holby City was moved to Thursdays for the duration of HolbyBlue first series, with the spin-off broadcast on Tuesday nights at 8 pm. A two-part crossover episode with Holby City was developed for the beginning of the show's second series, broadcast in 2008. The episodes were written by McHale and Jordan, and saw Holby City registrar Jac Naylor accused of murder. Yorke compared the crossover to the American CSI franchise, in that: "You really believe it's a world." While the second series attracted 5.6 million viewers with its opening episode, by the end of May 2008 viewership had fallen to 2.5 million. In August 2008, the BBC announced that due to declining ratings, Holby Blue would not be recommissioned for a third series. Other appearances In June 2002, cast members from Holby City and Casualty competed against the EastEnders cast for the first Sport Relief fundraiser, in a segment dubbed "Sport in the Square". The teams competed in events such as taxi pulling, melon tossing and a beer keg relay. The competition was televised on BBC One, and the event as a whole raised £10 million. In October 2003, BBC One aired a "Kenyon Confronts" documentary by Panorama reporter Paul Kenyon, investigating hospitals run