About five years ago, the announcement that actresses Sophia Bush, Hilarie Burton and Bethany Joy Lenz intended to host a podcast about “One Tree Hill,” the series in which they starred, put an entire generation raised on early-millennium teen dramas on high nostalgic alert.

Within days, the promo for the podcast, “Drama Queens,” which featured a theme song composed and performed by Lenz, climbed to the top of the Spotify and Apple charts.

It was clear that although the series premiered more than two decades ago and ended more than a decade ago, interest in it had not faded — whether because of the show itself or because of the three women who stood at its center for years.

Now, with all of its seasons arriving on Netflix, the conversation about what happened behind the scenes is only intensifying.

The idea for the podcast, initiated by Bush, resembled other recap podcasts: The three watched the episodes after admitting they had never seen them in full — and that the ones they had seen were viewed about a decade earlier — offered their perspective on what went on behind the scenes and hosted colleagues and crew members who could broaden the picture.