This Week's TV: New Venture Bros.! And a very special Game of Thrones.This week's TV is bonkers. There's quite possibly the most off-kilter take on superheroes you've seen this year. Doctor Who's Russell T. Davies pits wizards against space monsters. There's a demented-ass TV movie about an evil spa. Lando returns to Star Wars. Plus Venture Bros.' new season, and Game of Thrones' ninth episode!

Check out clips and previews of all this week's shows, below. Including minor spoilers.

Top image: Venture Bros.

Today:

Movie Marathon (All Day, Syfy):

Syfy is celebrating what made this country great, with a whole day of original movies including Camel Spiders, Sharktopus, Dinoshark, Piranhaconda and many others.

Adventure Time (7:30 PM, Cartoon Network)

Yes, television has not totally abandoned you tonight. There's the next installment in the fascinating Ice King saga: "“The Party’s Over, Isla de Señorita” — His kidnapping scheme foiled again for like the millionth time, Ice King decides he’s had enough." Check out a clip! And it's followed by Regular Show and Mad.

River Monsters (8 PM, Animal Planet):

The season finale of this show features an in-depth look at Nessie! "Jeremy's search for the Loch Ness monster takes him to the depths of the Scottish lake and the volcanoes of Iceland." NESSIE!

Revolution (10 PM, NBC):

Here's the penultimate episode of this post-apocalyptic show, and we're hoping for a big blow-out conclusion that sets up a way better second season. Just remember: season one of Supernatural was also kind of blah, too.

RACHEL ENRAGES MONROE WHILE THE REBELS INFILTRATE THE TOWER AND MILES AND MONROE MEET AGAIN - Rachel (Elizabeth Mitchell) and Monroe (David Lyons) battle with more than wits. Meanwhile, Miles (Billy Burke), Charlie (Tracy Spiridakos), Nora (Daniella Alonso) and Aaron (Zak Orth) get inside the Tower but Tom Neville (Giancarlo Esposito) and son Jason (JD Pardo) get shut out. Miles and Monroe once again face-off, this time even more lethally.

Teen Wolf: Back to the Pack (10 PM, MTV):

Get up to speed on the adolescent werewolf gang, with this one-hour special, before next Monday's season opener!


Tuesday:

Johnny Test (7:00 PM, Cartoon Network):

This episode is totally stealing from The Middleman: "“Johnny and Clyde”—Susan and Mary's orangutan, Clyde, turns into a 1940's style bank robber after Johnny lets him watch old time movies on TV." There's also a new Teen Titans Go, and you can watch a clip right here!

Reaper: Reunion (9 PM, FearNET):

Remember this awesome show, featuring Ray Wise as the Devil? FearNET has just started streaming the show on its website, and is re-airing the show as well. And there's a brand new reunion special!

FEARnet’s REAPERreunion special was shot on Wednesday, April 24, at the Medusa Lounge in Los Angeles. In attendance for the special—hosted by TV and web personality Angie Greenup—were series stars Ray Wise, Tyler Labine and Bret Harrison, as well as Rick Gonzalez, Ken Marino, Christine Willes and series creators Tara Butters and Michele Fazekas.


Wednesday:

Lego Star Wars: The Yoda Chronicles (8 PM, Cartoon Network):

Yes, it's another Lego Star Wars special — this time featuring Billy Dee Williams!

"The Phantom Clone," the first installment of a three-part series written by longtime Simpsons producer Michael Price. In the humorous, kid-friendly adventure the legendary Jedi master takes a group of Padawans on a mission to stop Darth Sidious, along the way encountering iconic Star Wars characters, including C-3PO, General Grievous and Admiral "It's a Trap!" Ackbar. Billy Dee Williams, who played Lando Calrissian in The Empire Strikes Back, has a surprising role in the episode.

Also on TV tonight: Discovery has a new Big Brain Theory at 7 PM and a new Mythbusters at 9 PM. There's also a new Nova at 9 PM on PBS. And there's the season finale of Psych on USA at 10 PM.


Thursday:

Absolutely nothing going on tonight, sorry. But you can always get caught up on Vampire Diaries, in preparation for the even more cracktastic fifth season.


Friday:

Space Warriors (8 PM, Hallmark):

This actually sounds pretty interesting. Starring Mira Sorvino!

The son of a retired NASA astronaut who lived on the International Space Station, makes his dreams of traveling to outer space come true when he competes to win a seat on the next space shuttle in this spectacular real-life look into the world of Space Camp.

Da Vinci's Demons (9 PM, Starz):

We've had Dracula and stuff. What could possibly be next? Sewers!

In order to gain entrance to the Vatican, Leonardo must somehow travel through the sewers, underwater. Once inside, he not only encounters the mysterious prisoner, but also comes face to face with Sixtus IV. Meanwhile, back in Florence, Giuliano unmasks the traitor who has been spying for Rome.

Chilling Visions: 5 Senses of Fear (9 PM, Chiller):

Can't wait for V/H/S/ 2? Here's another sort of horror anthology to tide you over:

The film comprises five unique - and hair-raising - takes on the human senses, each the vision of select up-and-coming writer/directors (including 20-year-old phenom Emily Hagins, who recently debuted her newest feature, Grow Up Tony Phillips, at SXSW 2013).

Merlin (10 PM, Syfy):

The series finale! Here's what's going on:

And so it seems the Prophets did not lie. As the great battle rages on Camlann's mighty plain, Merlin faces his moment of destiny. Can he find the strength to save the man he made a King; the Camelot they fought to build; and the brotherhood they shared?

Also on TV tonight: A brand new Transformers Prime on The Hub at 7:30 PM.


Saturday:

SheZow! (12:30 PM, The Hub):

There's a ton of superhero shows on television all of a sudden, but we pretty much guarantee you haven't seen one like this Australian import before:

The animated series follows 12-year-old Guy Hamdon (Sam Vincent, "Voltron Force"), a natural cut-up who fancies himself an extreme dude with his own macho catch phrase, "It's a GUY thing." Guy lives the dream of every rough-and-tumble boy when he discovers an awesome power ring, which transforms him into a mighty superhero. Pretty cool, but there's just one tiny catch - the ring that gives Guy his amazing superpowers was only meant to be worn by a girl and the result is absolutely she-larious. As the amazing crime-fighting SheZow, Guy must use his superpowers to battle mega-villains while sporting an outrageous female superhero costume, which actually ends up helping him on his own personal journey toward becoming one heck of a super man.

And that's followed by the season premiere of The Aquabats! Super Show.

Wizards Vs. Aliens (7 PM, The Hub):

Doctor Who's Russell T. Davies and his Sarah Jane Adventures partner Phil Ford created this brand new show about magicians fighting aliens who want to steal their magic — and the aliens are led by Brian Blessed! The opening two-parter airs in one block, so you don't have to wait a week for the weirdest car stunt you'll see this month. (Sorry, Fast & Furious 6.)

Kicking off with an action-packed two-part episode, the series follows Tom Clarke (Haran), a 16-year-old teenager who's hiding a secret - he's a wizard. Bound by secrecy to never reveal his powers, Tom confides in his best friend Benny Sherwood (Ascott) and together they embark on a dark crusade to save the world against Nekross, an alien race determined to drain the world of magic. Mentored by his enchanted grandmother (Annette Badland, "Doctor Who"), Tom must use his growing powers on an evil force he never imagined existed until now.

Deadly Spa (8 PM, Lifetime):

Holy crap, this sounds insane. There's a spa that's putting spells on people, along with the face masks and shiatsu and stuff:

When an overworked single mother agrees to take her teenage daughter to a luxurious spa retreat, the women believe they have escaped to a paradise of treatments, yoga, and nature hikes until a series of disturbing incidents has them questioning the perfection around them. The daughter is convinced they have to leave but her mother has suddenly been hooked on a spell of loyal following constructed by the Spa's spiritual leader, David James, who is determined to prevent anyone from leaving.

Orphan Black (9 PM, BBC America):

The season finale of this critically acclaimed show. In which "Sarah’s last chance to bring her nemesis back to sanity slips away as Art intervenes to get answers of his own."

Also on TV today: There's a new Monsters Vs. Aliens on Nickelodeon at 11:30 AM. Science has a brand new Outrageous Acts of Science at 10 PM, and the season finale of The Nerdist on BBC America at 10 PM.


Sunday:

Game of Thrones (9 PM, HBO):

It's the Game of Thrones episode you've been waiting for, or possibly curled up in a fetal position for. The ninth episode of every Thrones season seems to be the one where they punch you in the gut, but maybe this one will be the exception? Maybe it'll just be an hour of people playing with kittens. You never know.

Robb (Richard Madden) presents himself to Walder Frey (David Bradley), and Edmure (Tobias Menzies) meets his bride. Jon (Kit Harington) faces his harshest test yet. Bran (Isaac Hempstead Wright) discovers a new gift. Daario (Ed Skrein) and Jorah (Iain Glen) debate how to take Yunkai. House Frey joins with House Tully.

The Venture Bros. (Midnight, Adult Swim):

How long has it been since a full season of Venture Bros.? Too frickin long. This season premiere is called "What Color is Your Cleansuit?" and here's what to expect:

It's back to the Venture compound for an epic fifth outing! The fifth season of The Venture Bros. picks up moments after the stunning climax of season four and hits the ground running for a season of globe-trotting adventure and stay-at-home suspense. But no matter where it runs - from the steamy jungles of Central America, to the sparkling sands of the Greek Islands, to the seedy back alleys of Tangier, to the jagged cliffs of By-Golly Gulch - the Venture family can't escape the treachery of enemies old, new, and within. In season five, The Venture Bros. welcomes the guest voice talent of Aziz Ansari, Paget Brewster, Wyatt Cenac, Kevin Conroy, Bill Hader, John Hodgman, Gillian Jacobs, Kate McKinnon, Tim Meadows, J.K. Simmons, and Brendon Small.

Also on TV today: There's a new Marvel's Avengers Assemble on Disney XD at 11 AM.

Sources: Futon Critic, MSN TV, TV Guide, and various TV studio press releases.