What to Watch: The TVLine-Up for Monday

On TV this Monday: It’s time to play the family feud, with Hatfields & McCoys! Also: There’s a lot more than one Tree Hill, Cartoon Network goes MAD, Hart of Dixie goes back to the beginning and more. In addition to the specials and marathons listed in our Memorial Day Weekend guide, here are nine programs to keep on your radar.

10 am Nathan & Haley, Always & Forever: One Tree Hill Marathon (SOAPnet) | This nine-hour run of early “Naley”-themed episodes will make you nostalgic, cheery and very probably teary.

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8:45 pm MAD (Cartoon Network) | Spoofs on tap for the Season 3 premiere, which leads out of (ugh) Annoying Orange, include “Iron Giant Lady” and “The/Raising a New Hope.”

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9 pm Hatfields & McCoys (History) | Kevin Costner and Bill Paxton (Big Love) front this three-night miniseries about the legendary family feud that spanned decades and nearly launched a war between Kentucky and West Virginia.

9 pm Hemingway & Gellhorn (HBO) | This TV-movie depicts the love affair between literary master Ernest Hemingway (played by Clive Owen) and World War II correspondent Martha Gellhorn (Nicole Kidman) aka his inspiration for For Whom the Bell Tolls.

9 pm American Ninja Warrior (NBC) | The Top 30 finishers from the Midwest region preliminary round (which aired Sunday on G4) take on an even more challenging course, with an eye on the national finals.

9 pm Single Ladies (VH1) | For Season 2, Stacey Dash is out and Denise Vasi (All My Children) is in.

9 pm Hart of Dixie (The CW) | With this repeat of the pilot, revisit Zoe’s introduction to Bluebell, George, Wade and Lemon.

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10 pm Appropriate Adult (Sundance) | Fresh off its three BAFTA wins this weekend, check out this drama about British serial killer Fred West (played by The Wire‘s Dominic West) and his relationship with Janet Leach (Emily Watson), the “appropriate adult” appointed to sit in with him on police interviews.

10 pm Independent Lens: Hell and Back Again (PBS) | This Academy Award-nominated documentary follows adjusting war veterans as they return from deployment.

Which of the above is must-see for you? Also, hit Comments to offer your own tune-in suggestions.