Janis: Little Girl Blue (8 p.m., UNC-TV) – In this American Masters documentary (well reviewed when it debuted as a feature film), rock singer Janis Joplin’s life is explored through love letters and previously unseen footage.
Also on . . .
Today (10 a.m., NBC) – Scotty McCreery is scheduled to perform in the 10-11 a.m. hour. He’ll be on “Fox and Friends” on Fox tomorrow morning.
Chicago Med (9 p.m., NBC) – Doctors Rhodes and Downey are at odds over a patient’s emergency heart surgery.
New Girl (9 p.m., Fox) – Sam introduces Jess to his female best friend, and Winston is troubled by the reaction to a gift.
Person of Interest (10 p.m., CBS) – In the Season 5 premiere, Reese and Finch try to save the Machine’s source code before it deteriorates.
Frontline: Benghazi in Crisis (10 p.m., UNC-TV) – Journalist Feras Kilani investigates war-torn Benghazi, beseiged by the Islamic State group and warring militias. Also, Safa al-Ahmad reports on the fighting in Yemen.