Spotting a long-lost image of a relative on the TV

Imagine sitting down to watch the television news and suddenly spotting a photo of your grandfather from almost 100 years ago.

Well that's exactly what happened to Alex Fordham, as he watched a BBC London report about Alexandra Palace.

Alex got in touch with the reporter behind January's piece, Luxmy Gopal, and then went with his dad to Alexandra Palace - where the team was able to reveal more.