Doc Martin: The Doctor is Out In the season finale, Martin finds himself trapped by Annie Winton, who desperately wants him to try and save her husband. Thursday at 8 p.m. on PBS 6.
Southwestern Gems: Our Desert National Parks This locally produced program showcases the top national parks, monuments, preserves and historic sites within the four major North American deserts. Thursday at 8 p.m. on PBS 6.
FRONTLINE: Children of Syria Follow four children surviving in war-torn Aleppo and their escape to a new life in Germany. Tuesday at 10 p.m. on PBS 6.