An eagle-eyed soap fan noticed an Emmerdale and Coronation Street crossover while watching an old episode of ITV's The Royal.
Old episodes of the show, which was a spin-off from the hugely popular Heartbeat, currently airs on ITV3, and Wednesday's instalment featured stars who have since gone on to feature in some of the UK's best loved soaps.
Filmed in 2004, the episode featured Michelle Hardwick - who now plays Vanessa in Emmerdale - as Lizzie Kennoway, the hospital's receptionist.