We say goodbye to a couple of the fall shows that promise big finales, including a two-hour finale from Sleepy Hollow featuring John Noble and what might be a series-ending finale for Dracula. We'll also get the return of The Vampire Diaries with the show's 100th episode.

Also this week, Dyson tries to get an elemental Fae to help him find Bo on Lost Girl, Sally's new powers might prove useful on Being Human, Cat goes undercover for the FBI on Beauty and the Beast, Gabriel is hacked on Intelligence, a convicted killer is on the loose on Teen Wolf, Elena tries to hunt a killer on Bitten, Archer and the gang attempt to sell drugs on Archer, Davina becomes too strong on The Originals, Dean and Crowley partner up on Supernatural, the artists have an alien encounter on Face Off, and the future and the past collide on Syfy's new reality series, Opposite Worlds.

And Gene and Charlie try to help when sickness strikes Willoughby on Revolution, Laurel seeks to expose Sebastian on Arrow, Jedikiah trains new potential Ultra agents on The Tomorrow People, Ghost Hunters returns, American Horror Story: Coven goes to hell, Monroe asks Rosalee to marry him on Grimm, the secrets only get deeper on Helix, Hercules tries to find Medusa on Atlantis, and Holmes faces his biggest challenge on Sherlock.

Here's what we have to look forward to this week on sci-fi, fantasy and paranormal TV.

Monday, Jan. 20

Sleepy Hollow (Fox) 8 p.m. - “The Indispensable Man; Bad Blood”

Two-hour season-one finale! One of the most entertaining new shows of the season closes out its first season as Ichabod and Abbie uncover a startling secret within the pages of Washington's Bible that exposes how the first president died, and the battle between good and evil takes an explosive turn. Fringe's John Noble returns as Henry Parrish, the Sin Eater, and Alias's Victor Garber guests as Icabod's father. A second season has been ordered.



Here's a preview:

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Lost Girl (Syfy) 8 p.m. - “Sleeping Beauty School”

Bo is back ... or is she? Dyson seeks out an elemental Fae to find Bo, while Kenzi does some babysitting.

Here's a look:

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Beauty and the Beast (The CW) 9 p.m. - “Ancestors”

Cat goes undercover for FBI Agent Dana Landon (Elisabeth Rohm) and has a run-in with Vincent.

Here's a look:

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Being Human (Syfy) 9 p.m. - “That Time of the Month”

Sally's new powers might just help Nora bring back Josh. Meanwhile, Aidan runs into someone from his past.

Here's a look:

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Intelligence (CBS) 10 p.m. - “Mei Chen Returns”

Gabriel's chip is hacked. Worse yet, he discovers that Mei Chen is alive and has an even more powerful chip than he does.

Here's a preview:

Teen Wolf (MTV) 10 p.m. - “Galvanize”

Scott and the gang try to help when a convicted killer escapes during a surgery. Meanwhile, Kira gets a little unwanted help from her father when it comes to her social life.

Here's a promo:

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Bitten (Syfy) 10 p.m. - “Prodigal”

Despite her desire to return to her human life, Elena helps her pack try to hunt down a killer Mutt in Stonehaven.

Here's a preview:

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Archer (FX) 10 p.m. - “Archer Vice: A Kiss While Dying”

Archer, Pam and Lana head to Miami to pay a visit to some old friends by way of making a drug deal.

Here's a look:

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Tuesday, Jan. 21

The Originals (The CW) 8 p.m. - “Apres Moi, le Deluge”

When Davina's power becomes too strong for her to handle, the entire French Quarter is at risk. Meanwhile, Sophie offers an extreme solution.

Here's a look:

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Ravenswood (ABC Family) 9 p.m. - “I'll Sleep When I'm Dead”

Remy's visit to the sleep clinic has dire consequences. Meanwhile, Caleb seeks out information about Ravenswood's history.

Here's a preview:

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Supernatural (The CW) 9 p.m. - “First Born”

In an effort to take out Abbadon, Crowley makes a deal with Dean that forces them to partner up. Meanwhile, Castiel discovers that Sam has some grace left inside him.

Here's a promo:

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Face Off (Syfy) 9 p.m. - “Cosmic Conspiracy”

The artists are tasked with creating aliens based on the crop circles the alien might leave behind.

Here's a preview:

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Opposite Worlds (Syfy) 9 p.m. - “Future Welcome, Past Welcome”

Series premiere! In this extreme social experiment, two teams face off living in a house separated by a glass wall, with one side relegated to a future environment and one to a past environment. Each week the teams will complete to determine where they live and who goes home.

Here's a look:

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Wednesday, Jan. 22

Revolution (NBC) 8 p.m. - “Captain Trips”

Gene and Charlie agree to help the Patriots with the outbreak that's struck Willoughby, only to discover that things are not what they seem. Monroe and Miles continue their reluctant partnership.

Here's a look:

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Arrow (The CW) 8 p.m. - “Blind Spot”

Laurel turns to the Arrow for help in exposing Sebastian Blood and ends up putting herself at risk. Meanwhile, Sin convinces Roy to test his new super powers.

Here's a preview:

The Tomorrow People (The CW) 9 p.m. - “Rumble”

Jedikiah puts Stephen and other trainees to the test. Elsewhere, Cara gets a visit from someone from her past.

Here's a promo:

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Ghost Hunters (Syfy) 9 p.m. - “Orphans of Gettysburg”

Winter premiere! Ghost Hunters returns with all-new episodes. First up, TAPS heads to Gettysburg to investigate a possible supernatural connection between Civil War orphans and the 150th anniversary of the Battle of Gettysburg.

Here's a look:

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American Horror Story: Coven (FX) 10 p.m. - “Go to Hell”

The end is near! As the new Supreme is about to be revealed, the girls manifest new powers. Meanwhile, Cordelia's newest vision leaves the coven's future in question.

Here's a preview:

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Opposite Worlds (Syfy) 10 p.m. - “Live: Fight”

The Decider is chosen. Meanwhile, two contestants must face off in a duel.

Other Wednesday shows of interest:

On the Science Channel's Uncovering Aliens (10 p.m.), it's a new episode called “Alien Invasion.”

Thursday, Jan. 23

The Vampire Diaries (The CW) 8 p.m. - “500 Years of Solitude”

100th Episode! Expect a huge episode as the series hits the century mark. In it, Katherine is dying and the gang remembers her evil deeds. Meanwhile, Caroline engages in some shocking behavior, and a flashback takes us back to 1490, when Katherine gave birth to a daughter.

Here's a preview:

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Friday, Jan. 24

Grimm (NBC) 9 p.m. - “The Wild Hunt”

Monroe pops the question to Rosalee, but when his parents arrive early, things do not go as planned. Meanwhile, Nick and Hank hunt a cop killer who scalps his victims.

Here's a look:

Dracula (NBC) 10 p.m. - “Let There Be Light”

Season-one finale! Grayson's public demonstration of his technology has catastrophic consequences. Meanwhile, Lady Jane confronts Grayons in an all-out battle royal, and Mina learns why Grayson is obsessed with her.

Here's a preview:

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Helix (Syfy) 10 p.m. - “Single Strand”

With the base isolated from the outside world, Alan tries to figure out a way to save Julia and the others. Meanwhile, Doreen discovers a dark secret.

Here's the first 3-1/2 minutes of “Single Strand”:

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Other Friday shows of interest:

On ABC's The Neighbors (8:30 p.m.), Debbie's professor at school flirts with her, and Amber is sad over her relationship with Reggie. On the season-seven premiere of the History Channel's Ancient Aliens (10 p.m.), it's a look at “Aliens and Stargates.” And on the Travel Channel's The Dead Files (10 p.m.), Steve and Amy head to Rome, N.Y., to investigate possible paranormal activity involving a vicious entity that preys on children.

Saturday, Jan. 25

Atlantis (BBC America) 9 p.m. - “The Price of Hope”

In an effort to find Medusa, the guys get caught up in the brutal blood sport of a tribe of Scythians.

Here's a preview:

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Other Saturday shows of interest:

On LMN's The Haunting Of … (10 p.m.), Shirley Jones returns to a former residence in New York.

Sunday, Jan. 26

Sherlock (PBS) 10 p.m. - “The Sign of Three”

Sherlock's biggest challenge approaches ... being Watson's Best Man for his wedding.

Here's a preview:

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Other Sunday shows of interest:

On the Animal Planet's Finding Bigfoot (10 p.m.), the team heads to New Jersey, where they hunt for witnesses at a town hall meeting after a successful investigation.

What are you going to watch?