What to Watch Monday: Warehouse 13 Reopens, Raw Hits 1,000 (Hard), a New Alphas Bit and More

On TV this Monday: WWE Monday Night Raw pile-drives history as it celebrates a milestone, Warehouse 13 and Alphas start new sci-fi seasons and Bachelor Pad and MasterChef hand out some second chances. Here are nine programs to check out.

8 pm WWE Monday Night Raw (USA Network) | The weekly wrestling extravaganza celebrates its 1,000th episode with an understated homage to the history of the sport. Nah, just kidding; it’s three hours of total, delicious insanity as stars from Raw’s past — including Dwayne “The Rock” Johnson and Brock Lesnar – are on hand to celebrate a major milestone for the franchise. Plus: Will there be wedding bells?

8 pm Bachelor Pad (ABC) | Season premiere: Fifteen faces familiar to Bachelor/ette fans – plus five superfans – move into the mansion to compete for $250,000 and another chance at love. (But mostly they’re there for the money.)

8 pm The Secret Life of the American Teenager (ABC Family) | Grace tries to convince everyone to go to church. Grace and my mom would get along really well.

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9 pm Warehouse 13 (Syfy) | Watch a marathon from 8:30 am-5:30 pm, then catch here the Season 4 premiere, in which the team races around the world to find a dangerous artifact in the wake of the warehouse being destroyed.

9 pm MasterChef (Fox) | Eight previously eliminated contestants return to the kitchen and compete to earn their way back into the competition.

9 pm The Closer (TNT) | In a case that hits too close to home for Brenda, a well-liked oncologist is brutally killed and his drug supply wiped clean; Raydor accepts a new assignment; and Gabriel makes a life change.

9 pm Bunheads (ABC Family) | It’s Michelle’s birthday, and she wants a Vegas-style celebration. I, for one, wouldn’t mind seeing Truly after one too many Long Island Iced Teas.

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10 pm Alphas (Syfy) | Season premiere: The team reunites to deal with a hostage situation. (For more about what’s ahead in Season 2, Nina says, “Read TVLine’s preview with Laura Mennell, now.”)

10 pm Perception (TNT) | Laura Palmer lives! Twin Peaks’ Sheryl Lee guest-stars as someone who escaped a serial killer in the ’80s and whose help Pierce and Moretti seek when the murderer starts killing again. Dan Lauria (The Wonder Years), Pamela Reed (Parks and Recreation) and Armin Shimerman (Star Trek: Deep Space Nine) also appear.

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