When does Return to Lonesome Dove return?

Return to Lonesome Dove is a 1993 American four-part television miniseries. The story focuses on a retired Texas Ranger and his adventures driving mustangs from Texas to Montana. It was nominated for an Emmy Award, and followed by Lonsome Dove: The Series. It is a sequel to the 1989 minisery, but not written by Larry McMurtry, who instead wrote and published his own sequel novel Streets of Laredo in the same time frame.