OPRAH is renowned for being a thoughtful interviewer, but throughout her career, there’s ONE QUESTION that sticks out that she STILL wishes she wouldn’t have asked. She talked about it with ROB LOWE on his podcast this week. It was when she interviewed SALLY FIELD years ago, and she asked her if BURT REYNOLDS slept with his toupee on. (Sally and Burt dated for several years in the late-’70s.) Oprah said that she was younger . . and felt a “responsibility” to ask the kinds of questions that her viewers or producers might want to know. But it didn’t go over well. Sally didn’t answer . . . immediately clammed up . . . and the interview was basically over. Oprah said, quote, “[Even] now, I cringe to even think that I asked that question . . . and it was like, ‘Whoa, Sally went cold on me on live TV.’ I deserved it . . . because that is such an inappropriate question.”