Picture: Netflix
Mark Rober has touched down on Netflix. In a new series titled Mark Rober’s CrunchLabs, you’ll enter a science playground where former NASA engineer turned YouTuber Mark Rober tackles various challenges. The streamer has also just announced another collaboration with the YouTuber coming in December that’ll see him teaming up with Sesame Street.
You may recall that Netflix struck a deal with the YouTuber, who boasts a following of over 70 million subscribers, back in August 2025. That deal would see two shows come to Netflix, beginning with this compilation and an all-new original show in 2026, which we know will be a competition series of some description. It’s part of a recent push to bring some of YouTube’s biggest content creators over to the streamer and hopefully, their audiences along for the ride too. Ms. Rachel is the biggest example for 2025, although CoComelon arguably was the biggest early mover in the space.
Most of the episodes added to Netflix today are some of Mark Rober’s most-watched titles on his channel, with many having upwards of 100 million views on YouTube. Most runtimes are a little shorter on Netflix than on YouTube, but all do still have the advertisement at the end for the CrunchLabs subscription.
The episodes come in a wide variety of audio and subtitle options, with many of the dubs appearing to be synthetically generated by artificial intelligence (AI) rather than dubbed by a voice actor, as in Netflix Original productions. We tried numerous languages, and many of them have the characteristics of Mark Rober’s voice. Netflix has never officially confirmed whether it uses AI dubbing, but this seems to be the clearest case yet (with the caveat that this is not a Netflix Original), and there are no credits at the end of each episode to confirm either.
List of Episodes in Mark Rober’s CrunchLabs Season 1
1. Ultimate Robot Battle vs Dude Perfect – 18 minutes
It’s five against one when Dude Perfect challenges Mark to an epic robot showdown that’s full of surprises. The only rule is… there are no rules.
2. Beating 5 Scam Arcade Games – 18 minutes
Mark builds robots to beat the five most common arcade games, shares secret strategies to win tons of tickets and exposes some of the biggest scams.
3. World’s Largest Jello Pool – 9 minutes
After spending six months studying Jell-O, Mark sets out to fill an entire pool with it so he can see what it would be like to do a Jell-O belly flop.
4. Octopus vs Underwater Maze – 17 minutes
Mark challenges his pet octopus Sashimi to a nine-part underwater obstacle course that tests her amazing intelligence and incredible dexterity.
5. World’s Tallest Elephant Toothpaste – 16 minutes
Science Bob joins Mark for a record-breaking elephant toothpaste experiment involving a swimming pool, soap, yeast — and lots of food coloring.
6. Egg Drop From Space
Mark starts out with a plan to drop an egg from the world’s tallest building but shifts gears to attempt the world’s largest egg drop… from space.
7. Unbeatable Rock Paper Scissors Robot
Learn the science behind some of the coolest CrunchLabs creations, from a room-temperature ice rink to a rock, paper, scissors robot that can’t lose.
Christmas Special with Sesame Street Announced
The streamer announced Elmo and Mark Rober’s Merry Giftmas, a new 30-minute family special bringing a bit of holiday mischief to Sesame Street. The episode features three original songs, Merry Giftmas, Failure is Awesome, and The Best Christmas Gift is You, and follows Elmo and friends as they team up with former NASA engineer turned YouTube sensation Mark Rober to build inventive presents for a community gift exchange. Written by Halcyon Person and executive produced by Scott Lewers, Sal Perez, Rober, and Kay Wilson Stallings, the special was filmed in New York and California and produced by Sesame Workshop and CrunchLabs.
The special arrives on Netflix on December 8th.
Elmo and Mark Rober’s Merry Giftmas (L to R) Elmo, Cookie Monster, Grover and Abby Cadabby in Elmo and Mark Rober’s Merry Giftmas). Cr. Richard Termine/NETFLIX © 2025
Elmo and Mark Rober’s Merry Giftmas (L to R) Elmo and Mark Rober in Elmo and Mark Rober’s Merry Giftmas). Cr. Zach Fernandez Larraz/NETFLIX © 2025
Elmo and Mark Rober’s Merry Giftmas (L to R) Oscar, Cookie Monster, Abby Cadabby, Big Bird, Elmo, Mark Rober and Grover in Elmo and Mark Rober’s Merry Giftmas). Cr. Zach Fernandez Larraz/NETFLIX © 2025
Will you be checking out Mark Rober’s new series on Netflix? Let us know in the comments.
