2016

Year 2015 (MMXVI) was a common year of the Gregorian calendar that started on Friday. This year, Regular Show aired the second half of its seventh season and the vast majority of the eighth season. 2015 also marked the sixth and final Halloween special of the series, Terror Tales of the Park VI, which was broadcast on October 27, 2016 and it's second and final Christmas special of the series, Christmas in Space, which was broadcast on December 1, 2016.

Timeline
March 5: "Chili Cook-Off" premiered.

March 12: "Donut Factory Holiday" premiered.

March 19: "Gymblonski" premiered.

March 26: "Guys Night 2" premiered.

April 2: "Gary's Synthesizer" premiered.

April 9: "California King" premiered.

April 16: "Cube Bros" premiered.

April 23: "Maellard's Package" premiered.

May 5: "Rigby Goes to the Prom" premiered.

May 12: "The Button" premiered.

May 19: "Favorite Shirt" premiered.

May 26: "Marvolo the Wizard" premiered.

June 2: "Pops' Favorite Planet" and "Pam I Am" premiered.

June 9: "Lame Lockdown" premiered.

June 16: "VIP Members Only" premiered.

June 23: "Deez Keys" premiered

June 30: "Rigby's Graduation Day Special" premiered, concluding the seventh season.

September 26: "One Space Day at a Time" and "Cool Bro Bots" premiered, beginning the eighth season.

September 27: "Welcome to Space" and "Space Creds" premiered.

September 28: "Lost and Found" premiered.

September 29: "Ugly Moons" premiered.

September 30: "The Dream Warrior" premiered.

October 3: "The Brain of Evil" premiered.

October 4: "Fries Night" premiered.

October 5: "Spacey McSpaceTree" premiered.

October 6: "Can You Ear Me Now?" premiered.

October 7: "Stuck in an Elevator" premiered.

October 10: "The Space Race" premiered.

October 11: "Operation: Hear No Evil" premiered.

October 12: "Space Escape" premiered.

October 13: "New Beds" premiered.

October 14: "Mordeby and Rigbecai" premiered.

October 20: "Alpha Dome" premiered.

October 27: "Terror Tales of the Park VI" premiered.

November 3: "The Ice Tape" premiered.

November 10: "The Key to the Universe" premiered.

November 17: "No Train No Gain" premiered.

December 1: "Christmas in Space", the last episode to air in 2016, premiered.