The general rule to which I adhere in determining to which requests for interviews to accede to is to refuse all those that show signs of being concerned with details of what is known as my 'private life' rather than my work and ideas. The latter, I am glad to have publicised, and I weleome honest reports and criticisms of them. he best of these TV interviews that I have seen during the last years seemed to me to be one in early October, 1963, with John Freeman.
Source: The Autobiography of Bertrand Russell, v.3 chap. 4
More info.:
https://russell-j.com/beginner/AB34-160.HTM