https://www.thewrap.com/911-january-premiere-lone-star-mondays-prodigal-son-tuesdays-promos-video/

Prodigal Son will be moved from the post-9-1-1 slot on Mondays to Tuesdays following The Resident as 9-1-1 and its Lone Star spinoff air back to back. All four shows are returning in January.