John's Small Hint Of Different Beatles

In one of the Japanese interviews---the news conference of June 30, 1966---[listen to it on http://www.youtube.com/watch?v=o3LGZOymkQY ], a Japanese reporter asked John [in part]:

     0:45-0:49  "Do your families associate with one another?  With one another socially?"
     And John answered:
     1:00-1:04  "Which families?  I mean, the old Beatles?"

A small "slip",  but telling.