Downton Abbey (9pm, UNC-TV) - The conclusion of the first season reveals a surprising possible heir alternative to Matthew, and Mary meddles in Edith's romantic plans. Season 2 starts next week!

Leverage (9pm, TNT) - The sting is on when Nate's high-tech squad infiltrates the cash-for-gold industry. They zero in on a crooked brother-and-sister team by leading them through an intricate treasure hunt.

Angry Boys (10pm, HBO) - Australian comedian Chris Lilley plays six characters in this mockumentary series about the lives of 21st century males, which opens on a farm with twins and a guard at a youth detention center. A second new episode airs at 10:30. Check out the "Angry Boys" trailer. (Note: A marathon of Lilley's 2008 series "Summer Heights High" begins at 6 p.m. on HBO2).

Hell on Wheels (10pm, AMC) - Elam and Cullen are assigned a mission of vengeance by Durant. Meanwhile, Lily tries to settle in at the settlement. This show just got renewed for a second season.

Finding Bigfoot (10pm, Animal Planet) - In the Season 2 premiere, the Bigfoot Field Researchers Organization team head to New York to check out reports of a baby Bigfoot based on video evidence taken in the forest.

Chef Roble & Co (10pm, Bravo) - Chef Roble presides over two overblown events in the Hamptons. One is a dog wedding and the other is a naked-statue unveiling featuring a medieval twist and a full-size pig roast.

Once Upon a Time (8pm, ABC) - David (aka Prince Charming) must make a choice between Mary Margaret or Kathryn. Last week's backstory on Jiminy Cricket was crazy dark, right? Yikes.

Boardwalk Empire (9pm, HBO) - Jimmy recalls his time at college, and Nucky and Margaret discuss how to make the best of a potentially bad situation.

The Good Wife (9pm, CBS) - A routine arbitration turns into a battle between Alicia and Louis Canning (Michael J Fox), but when Alicia's daughter Grace goes missing, she and Louis find they have more in common than they believed. A tense episode with lots of Chris Noth camera time. Jennifer Carpenter ("Dexter") guest stars as Alicia's new client.

Dexter (9pm, Showtime) - Dexter races to identify the Doomsday Killers' next victim, while Debra's surprising reaction to a crime scene makes her wonder if she depends too much on her brother.

Neverland (9pm, Syfy) - A gang of young pickpockets snatches a magical orb that transports them into a fantastical realm in the debut of the miniseries set before Peter Pan met Wendy and Hook became a captain. Part one of two parts.

Homeland (10pm, Showtime) - Walker's Washington contact is identified by Carrie and Saul, but the target is protected via diplomatic immunity.

All-American Muslim (10pm, TLC) - The Fordson High football team plays its season opener during the holy month of Ramadan, when most of the team is still fasting.

Chef Roblé & Company (10pm, Bravo) - A new culinary reality series based on the experiences of Brooklyn-based chef Roblé Ali as he tries to launch a catering business with this commanding big sister.