Hartnell, or other Interviews

Just watching "The War Machines" recently started me wondering about interviews.
On some releases there were included some old interviews with various artists who worked in front of, or behind the camera.

However I do not recall seeing any such interviews with William Hartnell.
I figure the show was popular enough during his run.
Would he not have done some interviews during this time that might be around to include as an extra?

Interviews with such past artists, can be interesting, especially to hear from some of the early artists who helped to launch the show, particularly William Hartnell, the original incarnation.

The only interviews that I can recall were radio ones. Not sure, but you can look up Doctor Who at the BBC audios. These had various audio interviews from over the years relating to the program. There might be one or two there. See if Whona has them.