Enjoyed this very much. Thanks for posting. Cheevers' comments about Updike's "contributions" to literature, rather than his desire for recognition were well spoken. The only writers we might see today would be Stephen King or J.K. Rowling, both of whom live to be recognized and don't contribute much except for entertainment value.
Along these same lines as the Cavett interview: Bill Moyer chatting with Robert Bly
I had the opportunity to meet and speak w/Carol Bly (ex-wife). Twice actually. Wonderful writer in her way. She had colorful things to say about her ex-husband but still spoke of writings with respect.
I just finished reading Stephen King's book "A Memoir of the Craft," and it revealed him as anything but a self-serving media whore. Whether you like his books or not, his motivation for writing really does seem to be his love for the craft.