2018

All real-world events relating to the universe that occurred in 2018.

January

 * January 7 – aired for the first time.
 * January 14 – aired for the first time.

March

 * March 18 – aired for the first time.
 * March 25 – aired for the first time.

April

 * April 1 – aired for the first time.
 * April 8 – aired for the first time.
 * April 15 – R. Lee Ermey died.
 * April 22 – aired for the first time.
 * April 29 – aired for the first time.

May

 * May 6 – aired for the first time.
 * May 13 – aired for the first time.
 * May 20 – aired for the first time.
 * The sixteenth season of ended.

July

 * July 3 – Dave VanDam died.
 * July 10 – Lolee Aries died.
 * July 17 – Gary Beach died.

August

 * August 3 – Marni Sanders died.
 * August 24 – Robin Leach died.

September

 * September 30 – aired for the first time.
 * The seventeenth season of started.

October

 * October 7 – aired for the first time.
 * October 14 – aired for the first time.
 * October 21 – aired for the first time.
 * October 23 – James Karen died.

November

 * November 4 – aired for the first time.
 * November 11 – aired for the first time.
 * November 18 –  aired for the first time.
 * November 25 – aired for the first time.

December

 * December 9 – aired for the first time.