Each week, the HouseGuests took part in several compulsory challenges that determine who will win food, luxuries, and power in the House.
[5] Unlike other versions of Big Brother, the HouseGuests may discuss the nomination and eviction process openly and freely.
[4] The nominee with the greater number of votes will be evicted from the House on the live Thursday broadcast, exiting to an adjacent studio to be interviewed by Chen.
These "Jury Members" will be sequestered in a separate house and will not be allowed to watch the show except for competitions and ceremonies that include all of the remaining HouseGuests.
The jury members will not be shown any Diary Room interviews or any footage that may include strategy or details regarding nominations.
Three of four voted to reset the game and became full HouseGuests, meaning the coaches were now eligible for the standard $500,000 grand prize.
Britney Haynes returned for Big Brother 20, where she celebrated the engagement of Nicole Franzel and Victor Arroyo.
Janelle won the second coaches competition, "Phat Stacks", and chose to give Ashley immunity from the nominations.
On Day 14, Willie was expelled from the house, after going on a rampage in which he threw pork rinds at Janelle, swore at the female HouseGuests, and headbutted Joe.
Host Julie Chen then revealed to the viewers they could vote on whether or not the mentors should be allowed to enter the game.
On Day 22, all had competed in The Juggler Veto Competition, where each HouseGuest had to roll back and forth two balls at the same time on two different ramps.
On Day 30, Britney, Dan, Danielle, Frank, Mike Boogie and Shane created the "Silent Six" alliance and conspired to backdoor Janelle.
Frank decided to open Pandora's Box and received a little over $3,000, but unleashed quarters in the backyard to play the skill crane game, containing a Golden Ball of Veto.
On Day 51, in one of the greatest game moves in "Big Brother" history, Dan came up with a master plan to get himself off the block by hosting his own "funeral" after having 24 hours of solitary confinement to think on how he was going to get out of this mess.
He thanked Joe for teaching him how to be a good husband, called Shane the "real" Captain America, and told Jenn that she was the first lesbian he'd ever met and that he appreciated how much she has touched his heart.
He bonded with Britney over their status as newlyweds and praised Ian for making the experience of being in the Big Brother house more fun.
However, for Danielle, he said that he thought that she had similar qualities to Dan's closest friend and ally Memphis Garrett from Big Brother 10, but he found out that he was wrong.
Later, he managed to strike a final two deal with Frank, his nemesis in the house and exposed the Quack Pack to him, telling that Ian was responsible for Boogie's eviction, not Dan.
Following Britney's eviction on Day 55, the HouseGuests competed in an endurance HoH competition called "Soak Up the Sun".
With 51% of the public Twitter poll cast during the live show, America voted the first HouseGuest to drop out to have a punishment over a reward.
Immediately afterwards, Dan won the "Make Your Case" Head of Household competition after a tiebreaker question with Jenn and Danielle.
On Day 63, Ian opened Pandora's Box thereby giving the other HouseGuests video messages from home while he talked to Rachel Reilly from Big Brother 12 and 13.
On Day 66, Shane decided to use the Power of Veto to save himself from the block, and in return, Ian nominated Danielle as the replacement.
On Day 68, Danielle won her second HoH competition of the season "Photographic Memory", and went on to nominate Dan and Ian for eviction.
Before the finale ended, Julie Chen announced that Frank was the winner of the $25,000 America's Favorite HouseGuest prize.
[22] Open casting calls were held by the producers where they visited New Orleans, Los Angeles, New York City, Charleston, Odessa, Dallas, Miami, Cincinnati, Boise, Chicago, Atlanta, Denver, Louisville, Boston, Champaign and Phoenix.
[22] On June 4, 2012, Robyn Kass, casting director for Big Brother, revealed on her Twitter that all semi-finalists were contacted.
The overall layout of the house remained the same as to recent previous seasons, in addition to various refurbishments to the appliances and a new paint job in the backyard.
Willie proceeded to throw food at Janelle and call other female HouseGuests explicit names, before ending his rampage with the headbutt incident.
Minutes later, the remaining HouseGuests were informed by producer Allison Grodner that Willie had been permanently removed from the game.