Emmerdale S40 E62 Episode 5869 (Wed 16th Mar 2011)

Jimmy takes some paperwork up to the Sharmas' factory when Kelly approaches him, saying she's sorry. Jimmy's baffled and she's alarmed as she realises that he doesn't know who she is. She asks if he remembers anything about the last time they met - he assures her that he doesn't, revealing he's lost his memory.