Joel McHale talks about his unusual birth; a Hollywood actor discusses his recent firing; Scott's new machine is running the show; Scott receives a warning from the future.

Scott tries to pull off the perfect episode with a scientist's invention.

Reggie Watts returns to the show just in time to try to prevent a disaster; Weird Al has a surprising announcement; Adam Scott tries to give Scott some assistance.

When Scott leaves the show for a new opportunity, Jason Mantzoukas takes over as special substitute host and his first guest ends up being Scott; legendary soul singer Donny Gary.

When Scott runs late for work, Reggie and guest Andy Dick explore the endless possibilities that one missed bus can make. A mysterious stranger has dire advice for Scott and his mechanic reveals the best location for underground comedy.

Zach Galifianakis, "Weird Al" and the Comedy Bang! Bang! crew look back at at their favorite memories of Scott.

Actors Gillian Jacobs and Jason Mantzoukas stop by Comedy Bang! Bang! in the midst of Scott and Reggie trying to answer cliffhangers throughout the episode. Does Reggie’s new girlfriend have a secret agenda? Will Scott seek revenge over his stolen sandwich? Who’s inside the mysterious coffin on set? Special Guests: Chris Hardwick, Adam Scott and Michaela Watkins.

Inspired by “I Dreamed A Dream,” Casey Wilson sings her heart out during this week’s musical extravaganza episode. We find out who lives below the studio and learn a valuable lesson about the importance of talking. Special Guest: Thomas Lennon and Paul F. Tomkins.

Activist Victor Ramos shamelessly plugs some community program he's heading; Steven Yeun shares his preparations for the inevitable zombie apocalypse; plus, there is compiled footage of Reggie's entire life.

Malin Akerman reveals all her deep dark secrets; Slow Joey tries to juggle his new business venture with falling in love.

Scott receives some disturbing news that may mean the end of Comedy Bang! Bang! forever, but before the end, old chums Lord Andrew Lloyd Webber and Fabrice Fabrice stop by to wish the gang goodbye.

Tegan and Sara riff on their songwriting process, while Scott suspects there's something odd about the new intern. Also, the audience receives acting tips from a surprise guest.

Scott and Weird Al throw a party that gets a little out of control; Krysten Ritter plays her favorite party game; author Gail Summercat gives tips to women in the workplace.

Scott is excited to spend Thanksgiving celebrating with the Comedy Bang! Bang! crew, but a group of outsiders could disrupt his plans; Mike Colter discloses a shocking revelation; teacher Joe Bongo discusses his extra-curricular activities.

Host Scott Aukerman welcomes guest Paul Rudd, and discovers they both have a love of mime. The inventor of the adorable Crowpoke robot attempts to repair it when it breaks down. Huell Howser becomes fascinated by Scott, bandleader Reggie Watts, and everything else. A man who should be dead tells the harrowing tale of how he lost his arm. Scott leads his guests in the game "Ring it or Ding It".

Zach Galifianakis joins Scott on the couch for a very special holiday moment. Scott learns an important lesson about the meaning of Christmas when the bonuses get lost. Plus, we find out about Grumplegus the elf and finally meet Scott's mom.

Kevin Smith helps Scott celebrate his birthday; Reggie tries to create a special episode for Scott; a college student with an attitude.

Kristen Schaal shows off her real voice; Paul Rust debuts his New No Nos.

Weird Al and the gang cope with an untimely death of a friend; Allison Janney stops by the Comedy Bang! Bang! set to chat and play an exciting game.

Host Scott Aukerman invites guest Ed Helms to display his banjo prowess and make animal noises. Bob Ducca stops by to complain about his ailments. Bandleader Reggie Watts notices that the studio floor is covered with rat traps. All enjoy an energetic performance by the infamous daredevil Level Knevel. Scott hosts the game "Where Are They Going?"

When his guest Elizabeth Banks says the word of the day, host Scott Aukerman is forced to take action. While Scott nervously interviews a famous critic who is reviewing the show, a teamster interrupts to invite bandleader Reggie Watts and Scott on a "mind vacation". Smooth Jazz legend Barry R drops in to perform. Scott hosts a round of his game "What Do These Initials Stand For?"

Host Scott Aukerman welcomes guest "Weird Al" Yankovic, who smashes all musical conventions. Tenacious D stops by to play a new song. Scott and bandleader Reggie Watts use their new greenscreen technology, with disastrous results.The Potato Chip Woman visits to share the highlights of her incredible collection. Also, Reggie makes Scott a sandwich.

Scott welcomes actress Zoe Saldana to the set as she discusses – err spoils – her next movie. Reggie swaps places with a cop, and director “Garry Marshall” talks about his surprising new project. Special Guest: John Carroll Lynch.

Bill Hader stops by the set to chat with Scott. America's new favorite game show, SPIN 2 WIN, interrupts Comedy Bang! Bang! and Reggie joins via satellite from his extracurricular activity, chasing storms. Plus: watch what happens when Reggie eats a cheese puff. Special Guest: Jimmy Pardo and Bobby Moynihan.

An inspector narrows down the suspects of a murder that occurred in the studio; Jenna Fischer shares a clip from her appearance on the British version of "Comedy Bang! Bang!"