Those phoned-in group commentaries are (I think) antiquated, and usually awful.
One I remember being particularly disappointed in was for The Haunting (1963). Not that the participants weren't saying some worthy things. But it was so dry, and disconnected. (I don't mind a "live" commentator inserting a few recorded remarks from someone else when necessary, but it's got to be for something worthy, and be kept to a minimum.)
I do like a good one, though. The ones BK has either done himself or participated in are good examples, and there are others. I'd have to browse through my collection to come up with some, but they're definitely out there.