With relations between the Wattses and the Mitchells at an all-time low, this episode in the occasional series of Walford chronicles recounts the long-running dispute played out by the East End's two leading families and goes behind the scenes of the soap to update the current state of affairs. Producer Gillane Seaborne; Series producer Mark Cossey First shown on BBC3 EastEnders Revealed: Billy Mitchell is at 10.30pm on BBC3