NEW YORK (AP) — David Letterman, who said goodbye to his long-running talk show two years ago, will say hello to TV again with a new show for Netflix.

Netflix announced Tuesday that the six-episode series has Letterman combining two primary interests: in-depth conversations, and in-the-field segments sparked by his curiosity and humor. In each hour-long episode, Letterman will conduct a long-form conversation with a single guest, and explore topics of his own outside the studio.

The as-yet-untitled series is set to premiere in 2018.

In 33 years on late-night television, Letterman hosted 6,028 episodes of NBC’s “Late Night” and CBS’ “Late Show,” and is the longest-running late-night broadcaster in American history. He stepped down from “Late Show” in May 2015.