Partners in Crime (UK TV series) commissioned by Ben Stephenson and Charlotte Moore for the BBC to mark the 125th anniversary of Agatha Christie's birth. The adaptation was produced by Endor Productions in partnership with Agatha Christie Productions. David Walliams and Hilary Strong (Agatha Christie Group) approached Hilary Bevan Jones and Tom Nash (development producer) of Endor Productions with the idea of re-inventing the Agatha Christie characters Tommy and Tuppence Beresford. Walliams liked the idea of a married amateur detective duo bickering over a dead body. Agatha Christie wrote stories featuring the Beresfords between 1922 and 1973, depicting Tommy and Tuppence from before they were married
Tommy Westphall was quoted as saying, "Someone did the math once... and something like 90 percent of all [American] television took place in Tommy Westphall's mind. God love him." The "St. Elsewhere" characters Dr. Roxanne Turner (Alfre Woodard) and Dr. Victor Ehrlich (Ed Begley, Jr.) appeared on "". Fontana was the executive producer and showrunner for "Homicide" for its entire seven years. Proponents of the Tommy Westphall Universe argue that because of this fictional crossover, the two series exist within the same fictional universe, and within Tommy Westphall's mind because of the final episode of "St. Elsewhere"; by extension this hypothesis can