I think the Barbara Walters interviews had mixed results. Some were spectacular. A lot were snorefests. And anyone who has watched “Broadcast News” can tell you that in television a lot of the success of the on-air personality is due to the “little people” behind the scenes. Her better interviews may have been because of a better supporting crew.
Asking Katherine Hepburn what kind of tree she was really didn’t advance interviewing much, although it gave Hepburn a chance for a clever response.
https://youtu.be/M_X2Xd1iOmMThe problem with that question is that it gave license to other journalists to attempt stupid questions under the guise of trying to dig deeper. A mediocre TV journalist in Reno did that in the 1990s.
Here is my exclusive observation. It seems Walters’ best interviews were with people who needed her, people in trouble who needed to address an issue to fix damage. The worst were people who Walters needed just for celebrity to bring in the ratings. Those were boring, self-indulgent interviews.