The ones I revisit don't have particularly high production values. In fact, there is very little in the way of production or post-production. They don't appear to have expensive equipment or anyone assisting them. Simply put, it's the quality of the content and the skills of the presenters/interviewers that draw me in.
Interviewing is a skill, and good interviewing techniques take practice. I wouldn't say I'm an expert, but I do have some radio experience, I majored in Drama at University, was a teacher for more than twenty years, spent several years as an investigator conducting interviews, and undertook Research Methods for my Postgraduate studies.
So let's be clear. There is an art to conducting interviews and presenting. You need to prepare, to have areas to cover (especially if the interviewee isn't forthcoming) as well as being prepared to shoot off on tangents if the interview leads into other interesting yet relevant areas. And yet I have seen and heard so many who cannot interview or present to save their lives.
I saw one particular interview where the subject was fascinating, with a great tale to tell, and yet the interviewer, who had no charisma, presence or technique, tried to revert everything back to their own experience and made it about them. (And believe me, it was dull)
I saw another where the presenters had all the equipment, expensive and high quality, but spent the first five minutes talking about connection issues as though no-one was listening.
Another where the two co-hosts thought they were hilarious, and laughed at all their in-jokes which the audience wouldn't have understood.
And the one where the interviewer obviously hadn't prepared and made vague generalised statements about the subject (and the interviewee was a specialist) which showed a general ignorance and lack of understanding. They did have a marketable gimmick, though.
Oh dear, the list goes on.
It's all too easy these days, isn't it? Anyone can throw a podcast onto a streaming service, or a video up on a channel in YouTube. Anyone can claim to be an expert, and it appears many can build a following without actually being any good.
Which reminds me. There is also an art in being an audience member and using your discernment.