Big Brother 1

Big Brother 1 is the 1st season of the MTV edition of Big Brother.

Twists

 * Premiere Safety: The first safety competition starts almost immediately as the houseguests move into the house in their move-in groups. Each round, the five houseguests in each of the four move-in groups will compete for safety, where the winner will be immune for the upcoming eviction. One houseguest will win safety from each move-in group, making four houseguests ineligible to be evicted at the first live eviction. In addition, they will not be allowed to compete in the first Head Of Household competition.
 * Forced Veto: During Week 3, it was announced that for this week and the next, the Power Of Veto MUST be used. The Power Of Veto Holder for the Weeks 3 and 4 would be forced into using the Power Of Veto on one of the two current nominations.
 * Invisible Week: Like the Invisible HOH power from Big Brother Canada 9, the HOH would remain invisible, where the winner would be kept a secret. They would name their nominations in secret and would be eligible to play not only in this week’s Veto Competition but the following week’s HoH Competition as well. But in this season, it is Invisible Week, where the Invisible HOH will be crowned, AND an Invisible Power Of Veto holder. Everyone would compete in the Power Of Veto, but only those who were drawn in secret would be eligible to win the Power Of Veto. The Invisible Power Of Veto Holder would make their decision also in private like how the Invisible HOH made their nominations.
 * HOH Bypass: Unlike usual seasons, the HOH will be allowed to cast a vote to evict and play in the following HOH competition.
 * Pre-Juror BattleBack: After 7 houseguests have been evicted, there will be a competition that allows one of them to return into the game and have a second chance to win.

Alliances
{| class="mw-collapsible wikitable" style="margin:auto; text-align:center; width:100%; font-size:8pt; line-height:12px;" align="center" ! colspan="2" rowspan="2" |Alliance Name