It consisted of thirteen episodes, each approximately 60–120 minutes long, with Allison Grodner and Rich Meehan as executive producers for Fly on the Wall Entertainment, in association with Endemol Shine North America.

The season followed a group of celebrities, known as HouseGuests, who lived in the Big Brother House under constant surveillance with no contact from the outside world.

[7] CBS ordered a second season of Celebrity Big Brother on May 12, 2018, then confirmed it would return for a mid-season run four days later when the network revealed its 2018–19 fall prime-time schedule.

Their production company Fly on the Wall Entertainment will produce the season for CBS in association with Endemol Shine North America.

[13] CBS confirmed on November 27, 2018, that Chen Moonves would host the second season of Celebrity Big Brother.

The second floor is accessible by a spiral staircase located in the kitchen next to the sliding glass doors that lead to the backyard.

[19] The kitchen was inspired by some of the finest restaurants in New York City with a "faux French" oven island and a square dining room table.

[21] The upstairs lounge was designed after the Brooklyn Bridge, while the gym area was inspired by the 42nd Street library in Manhattan.

[24] Alongside the weekly shows on CBS, the companion series Celebrity Big Brother: After Dark returned on Pop and to provide live coverage nightly from inside the House.

Periodically, the HouseGuests take part in several compulsory challenges that determine who would win safety and power in the House.

[27] This compulsory vote is conducted in the privacy of the Diary Room by the host Julie Chen Moonves.

[27] Unlike other versions of Big Brother, the HouseGuests can discuss the nomination and eviction process open and freely.

HouseGuests can voluntarily leave the House at any time (referred to as "walking") and those who break the rules are expelled by Big Brother.

The 24/7 internet live feeds officially opened permanently to CBS All Access subscribers in the early morning hours of January 22, 2019.

[37] Some initial speculation stated that he only left temporarily due to his face on the memory wall, which is normally grayed out when a HouseGuest leaves, still being in color.

[38][39][40] These claims were later disproved when a HouseGuest questioned why his face hadn't turned black and white and another stated "I miss Anthony Scaramucci".

[47] In a video acquired by TMZ when Scaramucci was asked about his departure he stated that he "unfortunately signed a confidentiality agreement" and that "there’s a little bit of a cliffhanger".

[48][45] It was announced that more information about Scaramucci's exit would air ahead of the live eviction in the fourth episode of the season on January 25, 2019.

[52] In a second interview with Entertainment Weekly Scaramucci was asked whether the twist had been planned or if it was a cover-up, he responded "I absolutely did not quit the game.

In order to vote, the viewers needed to post a tweet that included a specific hashtag created by CBS that corresponded with the HouseGuest's name.

Tamar started trending because the viewers wanted the drama and entertainment to stay in the house for a few more weeks.

The winner of the special safety competition, Tamar, won immunity during the double eviction, but became ineligible to become Head of Household as she could not compete.

[61] Tom Green returned in the seventh episode of the twenty-third season of the civilian edition to host a Head of Household Competition.

As the third part to this twist, Anthony announced that there would be a second veto played for this round of nominations allowing everyone on the block a second chance to be safe for the week.

At the veto meeting Kato removed Tom from the block, Ryan nominated Joey in his place.

On Day 18, by a unanimous vote of 6–0, Joey was the third to be evicted from the Celebrity Big Brother house, also becoming the third juror.

Following his HoH win Tom has a one-on-one meeting with each of the remaining HouseGuests as he begins deciding who he wants to nominate.

The Power of Veto competition was played by Tom, Ricky, and Natalie; along with Tamar, Kandi, and Dina chosen by random draw.

This time being a safety competition; one HouseGuest would have the chance to be safe for the night, being immune from the second eviction, but not have the opportunity to win Head of Household for the round.

Former Celebrity Big Brother HouseGuest Mark McGrath joined the final five as they looked back over their time in the house.