What to Watch Friday: Unforgettable, Five-0 and Blue Bloods Finales, a Dixie Dilemma and More

O Ka Pilo 'Ohana Ka 'Oi (Family Comes First)On TV this Friday: Carrie as Unforgettable high schoolmemories, a Dixie due debate what to do, Hawaii Five-0 ups the ante and Shark Tank goes on a deep-sea treasure hunt — figuratively, of course. As a supplement to TVLine’s original features (linked within), here are 9 programs to keep on your radar.

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8 pm Unforgettable (CBS) | Season 2 finale: When a high school classmate is murdered at her reunion, Carrie must delve into her teenage memories for clues. (Yep, renewed!)

8 pm Whose Line is it Anyway? (The CW) | Keegan-Michael Key joins the gang for some laughs.

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9 pm Grimm (NBC) | Nick and Hank investigate a double homicide linked to the Verrat, while Trubel gets involved with a mysterious father-son duo that traveled across the country to find “the Portland Grimm.”

9 pm Hawaii Five-0 (CBS) | Season 4 finale: After Grover’s daughter is kidnapped by an old nemesis, he must help steal $100 million in order to get her back. Meanwhile, Wo Fat escapes from prison and heads back to Oahu and Nick Jonas returns as Ian Wright. (Yup, renewed!)

9 pm Shark Tank (ABC) | When a former merchant marine from Anacortes, Wash. pitches an innovative, deep-sea treasure hunting business, Robert has some advice – as do we: X marks the spot!

9 pm Hart of Dixie (The CW) | Wade’s dad asks Zoe for advice on his love life — and thought she is happy to help, Wade tries to convince her that no good can come from it. (Psst, did you hear the big news?!)

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10 pm Blue Bloods (CBS) | Season 4 finale: After Danny is placed on modified duty for investigating an off-limits case, he uncovers shocking information that someone is trying to keep a secret. (Yup, renewed!)

10 pm Continuum (Syfy) | Kiera and an emotionally struggling Carlos must rush to stop Liber8 from launching a chemical attack on the city.

10 pm Hannibal (NBC) | Jack and his team discover the truth about Freddie Lounds’ disappearance; Hannibal reveals to Will how much Abigail reminded him of his sister.

Hit the comments with your must-see picks from tonight’s lineup!