The TVLine-Up: TV Worth Watching This Monday

On TV this Monday: Dancing With the Stars returns to the parquet, the Pretty Little Liars finally come face-to-face with “A,” there are mother lovers on Two and a Half Men and more. In addition to TVLine’s original features (linked within), here are nine other shows to keep on your radar.

8 pm Dancing With the Stars (ABC) | Season premiere: The latest cast includes Greek goddess Maria Menounos, Little House‘s Melissa Gilbert and soap opera vet Jack Wagner. “Allll… I neeeeeed… is a little more time, to rehearse….”

8 pm Pretty Little Liars (ABC Family) | Season finale: After a game of cat-and-mouse at Rosewood’s Junior League Masquerade Gala, Aria, Emily, Hanna and Spencer finally come face-to-face with their tormentor. Poll time!

8 pm House (Fox) | House and the team battle to save a blind man (Friday Night Lights‘ Michael B. Jordan) struck down by a mysterious illness; House’s mother unexpectedly arrives at Princeton Plainsboro to inform him of her new beau (guest star Billy Connolly).

8 pm How I Met Your Mother (CBS) | To celebrate the CBS sitcoms’ return, we’re gonna give every one of ’em some TVLine-Up love. First up: The gang tries to break up Barney and Quinn after learning they plan on moving in together. (See photos here!)

8:30 pm 2 Broke Girls (CBS) | Max and Caroline take a spring getaway at a couple’s posh apartment where they’ve been asked to dog-sit. Hey, maybe they can give Mike and Molly some pointers? (You’ll get that joke in a few seconds, depending on your reading speed.)

CBS Renews 18 Shows for Next Season, Fate of Two CSI Series Left Up In the Air

9 pm Two and a Half Men (CBS) | Alan’s mother for the first time meets Lyndsey’s mom (played by Mary Tyler Moore‘s Georgia Engel) — and wow, do they, um, hit it off.

9:30 pm Mike & Molly (CBS) | And last but not least: When Peggy goes out of town, she leaves her dog with Mike and Molly, saying it will be good practice for having kids.

Ed Asner Previews His Hawaii Five-0 Encore, 36 Years in the Making: ‘He’s Still Spicy!’

10 pm Castle (ABC) | Holy DWTS synergy! As Beckett and Castle delve into the murder of a TV dance show (!) contestant, they discover the deceased was harboring a shocking secret that may have led to her death. Lauralee Bell (The Young and the Restless) and Adam Harrington (The Secret Circle) guest-star.

10 pm Lost Girl (Syfy) | Bo meets a Dark Fae succubus; Kenzi attempts to help Trick save the The Dal Riata.

Megan Hilty Teases Smash‘s Mother of a Twist, More Ivy/Karen Drama and Marilyn‘s First Ouster

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