Channel 5 producers have lifted their ban on contact with the outside world in a shock first for Britain's most famous house.
During last night's show, Tom Barber was voted as the new People's Housemate and will get access to public opinions via social media in the race to become the most powerful contestant.
One fan didn't hesitate to comment on Twitter: "Doesn't Tom having contact with the outside world defeat the purpose of Big Brother? #BBUK."
Another said: "I don't like this whole Facebook live thing, the whole point of Big Brother was no contact with the outside world for a few weeks no? #BBUK"
CHANNEL 5 • GETTY
Big Brother series 18 launched this week to explosive developments and rule changes
Emma Willis chats to Tom Barber before he enters the house
Tom beat three other hopefuls to be named the People's Housemate
Catching up on last night's Big Brother and it's already such a fix
While one fan addressed Big Brother directly, asking them how the logistics would pan out with the new decision: "@bbuk so how is this going to be fair when it comes to voting considering so many of these people have up to 100k followers on social media!"
And one poster was blunt in their response to the episode last night: "I genuinely believe that Big Brother using social media within this series is a bad move. #BBUK'
Get Quotes on Home Insurance
It comes after Tom and co-star Lotan Carter revealed that they had never actually applied to be on the show, sparking claims that the series is fixed.
"'Did you even apply for this?' 'Nah, I was in Marbella and Channel five messaged me on Facebook' 'Yeah me too'. Nice one Big Brother. #BBUK," one person posted.
And another didn't appreciate feeling like a fool as they voiced their anger on the site: "Big Brother has FOOLED viewers totally by allowing the public to vote for someone to go into the house who didn't even audition, FIX! #BBUK."
Big Brother 2017: Confirmed line-up Tue, June 6, 2017
Big Brother 2017: Who are the contestants? Full line-up and details revealed.
Channel 5 1 of 20
Big Brother 2017 confirmed line-up
Mother and daughter duo Mandy Longworth and Charlotte Keys entered the house
New rule-change a 'bad move' says fan
One twitter user called out Big Brother
Fans aren't impressed with housemates having contact with the outside world
"Catching up on last night's Big Brother and it's already such a fix, the fact that Tom was talking about how he didn't even apply," a viewer added.
This year's hopefuls also include a pair of Nigerian sisters, a mother-daughter tag team (another first for the show), the son of an aristocrat, and some Ex on the Beach alumni. Six out of 16 housemates have all actually featured on a reality TV series already.
But perhaps the most intriguing addition to the group is Tom, who will supposedly have "all the power".
The "Welsh Dragon" beat three other wannabe contestants to get the coveted role, and will create some delicious drama as he gets spoon-fed tidbits of information about his fellow housemates as well as being the "eyes of the public".
A Big Brother representative refused to comment on the rule change in the series, but gave a reason for the 'fix' claims.
"Housemates are discovered in various ways and have to go through the selection process. Tom was voted in by the public as the final housemate," the rep said.
Big Brother airs nightly on Channel 5 at 10pm.