... at The Cavern Club, Liverpool (Aug 22, 1962) (20.9 MB, mpeg, b&w).
"At this midday session at The Cavern, we proudly present The Beatles!".
During the lunchtime show they were filmed by Granada TV for the Know The North programme, but this was not shown until a year later, during the Beatlemania, on Scene At 6:30 (Nov 06, 1963). Some say this is the first filming of them but not exactly. At least, this is the first tape featuring Ringo on drums.