What are the guinea pig trials for BBUK all about?
 

I’ve heard it being mentioned several times, but what exactly are they?

this is when people trial out the big brother house for a while before the series starts, to check if things work alright and if it is an ok place to live. Katie Hopkins actually did it one year

Yeah for the first series right?

think so, but they still do it nowadays i think?

I think so but it's only a couple of days now compared to a week iirc