The fourth series of Promi Big Brother started on 2 September 2016 and ended on 16 September 2016. It was the fourth series of the Big Brother franchise on Sat.1, after it left RTL II. 5 celebrity housemates ("promis") entered the house on Day 1 and the other 7 celebrities entered on Day 3. The show was hosted by Jochen Schropp.

This article does not cite any sources. (September 2016)

Promis had participated in tasks and matches for treats or to avoid punishments. Daily nominations also took place (from Day 8 to 14). Furthermore, the house consists of two floors, the upper luxury floor and the lower poverty floor. Housemates on the luxury floor will choose of the poor housemates to join them upstairs, whilst the public will vote one of the 7 downstairs.

This year's Promi Big Brother contains two floors, each floor having their separate living areas, bathrooms, bedrooms and diary rooms. The upper floor will be luxurious, whilst the lower floor is meager with no beds or real seating. This years the downstairs area was changed into a sewerage.

As in the last two seasons, the participants were distributed before the broadcast of the show by the producers in the respective areas. From the first show, the participants and the audience could change the distribution of the housemates in each case by voting and using the Duel Arena.

As in the previous duels between the Duels also took place this year. Big Brother (voiced by Phil Daub) each appoint one or two residents from the "house" who must compete at the Duel Arena. In the Duel Arena they both played a game and the loser must face the consequences for his living area. A draw always win the inhabitants in the "upstairs". The duels each can either have a positive impact on the winners section or consequences for the loser section. So must for example, the losing team changing areas, receives less food or have to give personal items.

  – Downstairs Housemates after week 1

  – Upstairs Housemates after week 1

  – Immune from nomination

  – Nominated before the actual nomination

  – This round of nominations were to save.

• Official website