The TVLine-Up: TV Worth Watching This Monday

On TV this Monday: Charlie Brown fights “the Eastern syndicate” behind the commercialization of Christmas, Gossip Girl drops a bombshell, The Closer kills Santa, Castle is “Cuffed” and more. We’ve hand-selected a dozen programs to keep on your radar.

8 pm A Sing-Off Christmas (NBC) | Holiday and inspirational songs are performed by the winning groups from all three seasons, a compilation of lead singers from Season 3, and others.

8 pm Gossip Girl (The CW) | Fall finale: Lily throws a party to introduce Charlie to New York society — unless the guest of honor’s ex-beau, Max, spoils the soiree; Dan decides it may be time to tell Blair the truth about his feelings. Remember: Perhaps the show’s “biggest cliffhanger ever”! P.S. Feel free to offer a caption for the Dan/Blair photo shown here.

8 pm A Charlie Brown Christmas (ABC) | “This little green tree here seems to need a home… We’ll decorate it and it’ll be just right for our play. Besides, I think it needs me.” (The all-new animated special Prep & Landing: Naughty vs. Nice follows.)

8 pm How I Met Your Mother (CBS) | When Robin receives bad news, she decides to lie about it to the gang; Marshall hangs Christmas decorations on his house with help from his neighbor.

8:30 pm 2 Broke Girls (CBS) | Max and Caroline try to find Chestnut a job in order to get him lodging for the winter; Peach, the mother of the twins Max babysits, auditions for Real Wives of TriBeCa.

How I Met Your Mother First Look Video: Robin’s Baby News Knocks Barney Out

9 pm Neverland (Syfy) | The two-night miniseries concludes with Peter licensing a line of peanut butter.

9 pm The Closer (TNT) | Episode 100: A Santa’s zip-line entrance into a Christmas Village turns fatal. Fred Willard guest-stars as the village’s owner, Christine Woods (FlashForward) plays Buzz’s very cute  sister.

9 pm Hart of Dixie (The CW) | Fall finale: Zoe and Lemon’s rivalry enters a new arena when they respectively coach Rose and Lemon’s kid sister, Magnolia, for the Miss Cinnamon Cider Pageant. In flashbacks, we see when Lemon and Lavon first realized they had a connection.

9:30 pm Enlightened (HBO) | With Amy at work, Helen runs into an old friend whose husband used to work with her late husband, Jim.

TVLine Presents Your Guide to Fall Finale and Winter Return Dates

10 pm Castle (ABC) | Castle and Beckett wake up in bed, handcuffed together, in a locked room with no memory of how they got there. As they try to escape, what’s the biggest threat they face — the people who abducted them or each other? (View photos and video.)

10 pm Hawaii Five-0 (CBS) | McGarrett & Co. search for a busload of kidnapped school children as well as the people responsible. Ingo Rademacher (General Hospital) guest-stars as the father of one missing child.

10 pm Rizzoli & Isles (TNT) | Jane’s brother Tommy may be facing more trouble just as his relationship with Maura begins to grow. Tessa Thompson (Veronica Mars) guest-stars as a by-the-book FBI agent who has a complicated history with Detective Frost.

Which of the above is must-see TV for you? Also, hit the Comments to politely offer tune-in suggestions of your own. With raindrops we can fill buckets!