John Higgins (not pictured left) is to appear on the BBC's Celebrity Mastermind answering questions about the American soap opera Dallas.
World champion Higgins, an old fan of the show, has been honing his knowledge by watching DVD box sets.
Dallas, an iconic programme of the late 70s/early 80s, famously featured a storyline in which oil baron J.R. Ewing was shot.
The episode in which his assailant was revealed set a new record viewing audience in the USA and was watched by 350m people around the world.
There was also an entire season which turned out to be one character's dream as Patrick Duffy, who had been killed off as Bobby Ewing, decided to return and duly pitched up in the shower, alive and well.
Good luck to John, who is playing for charity. The series will be aired around the festive period.