Some viewers questioned whether or not the show is scripted. From what I've gathered from the comments of the show's guests, it appears that some elements of fiction were incorporated into the broadcast along with some real-world elements.
In one episode, Lee explained his absence and why it was necessary. He came clean about having an irregular heartbeat (Afib) since infancy. So while he wasn't on the range, he was probably at the doctor's office having his problems addressed.