Came across this of on Trendhunter of all places--a TV interview from 1964. The video portion is not viewable but the audio survived and was aired on BBC4.
From the BBC:It's an interesting piece on two levels. The obvious--hearing the very young Beatles talking about their experiences and music as they were living it back at that time. And the not so obvious--the packaging, a 30 minute program, produced and aired on the BBC. Not something common here at home in the US.
"Helen Shapiro presents the story of a lost TV interview with the Beatles recorded in April 1964 and recently found languishing in a rusty film can in a garage in South London."
Take a listen for yourself right here: The Lost Beatles Interview on BBC4