What to Watch Monday: The Sing-Off Returns, Sleepy Fall Finale, Christmas Light Fight and More

the-sing-off-season-4-premiereOn TV this Monday: The Sing-Off warms up for Season 4, Sleepy Hollow is stuck in limbo, The Great Christmas Light Fight begins and Mike & Molly get hooked on shopping. As a supplement to TVLine’s original features (linked within), here are 10 programs to keep on your radar.

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8 pm Almost Human (Fox) | Kennex and Dorian are tasked with protecting the only remaining witness in a major murder trial.

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9 pm The Sing-Off (NBC) | Two-hour Season 4 premiere: Recording artists Jewel, Ben Folds and Shawn Stockman (Boyz II Men) judge the country’s best a cappella groups. Nick Lachey hosts.

9 pm Major Crimes (TNT) | When a body turns up at a posh country club, the squad’s investigation becomes full of surprises.

9 pm The Great Christmas Light Fight (ABC) | Series premiere: Twenty families from across America decorate their homes to the extreme for Christmas, all in the pursuit of a $250,000 prize (to cover their electricity bills?).

9 pm Six by Sondheim (HBO) | This documentary explores the life and career of Broadway lyricist Stephen Sondheim through six of his best-known songs.

9 pm Sleepy Hollow (Fox) | Fall finale: Ichabod enlists Henry Parrish (returning guest star John Noble) to help him communicate with Katrina, but a menacing danger from purgatory is unleashed in the process. (Parrish, you had one job.) Get scoop from the stars here and here.

9 pm Mike & Molly (CBS) | Molly needs to curb her shoe-shopping addiction if she wants to maintain harmony in her marriage.

9 pm One Direction iHeartRadio Album Release Party (CW) | Alert your daughters (and Paul Rudd): The band will perform and discuss their new album with American Idol host Ryan Seacrest.

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10 pm Hostages (CBS) | Brian goes to the police to expose Duncan and his team.

10:30 pm Rick and Morty (Adult Swim) | Hyper-intelligent dog Snuffles goes looking for something very, um, private.

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