Be My Valentine, Charlie Brown/A Charlie Brown Valentine (8 p.m., ABC) – Two Peanuts specials tonight! When Sally sees the box of candy Linus bought for his teacher, she thinks it’s for her and gives him a card. Meanwhile, Charlie waits for a card.
American Masters: B.B. King (9 p.m., UNC-TV) – This look at the challenging life and career of guitarist B.B. King includes candid interviews with Bono, Bonnie Raitt, Carlos Santana, Eric Clapton, John Mayer and Ringo Starr.
Second Chance (9 p.m., Fox) – A dead pool predicts Mary will die on the same day as the launch of an important Lookinglass product.
Grimm (9 p.m., NBC) – After a barbaric ritual takes place, Monroe goes under cover to help Nick, Hank and Wu track a serial killer.
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Blue Bloods (10 p.m., CBS) – Multiple women take credit for murdering the man they worked for, and Frank and his priest clash over how to deal with a boy who has been stealing from the church.