[Ant.]

CBB18 averaged 2.1 million (the lowest a summer CBB had been up to that point I believe)
CBB19 averaged 2.4 million (the lowest January CBB at the time)
CBB20 averaged 1.8 million (the lowest a summer CBB has been)
CBB21 averaged 1.9 million (the lowest January CBB)
CBB22 averaged 2.0 million (I'd argue this is relatively low given the controversy?)

The series before CBB18, BB17, did relatively well for a Civilian series, with 1.6 million viewers - A LOT better than BB18's average of 1.24 million. This only got worse by BB19, barely averaging a million.

It is apparent that BBUK lost a sizeable amount of viewership after CBB18, but what was the reason? There was no noticeable change in the format for another year (CBB19, CBB20, and BB18 were all series that felt familiar - whether they're as good as other channel 5 series is up to debate), with change only being felt with CBB22 onwards (when the show was on its way out).. But was CBB18 that bad people turned off for good?

Production seemed to remain the same for the following year yet the franchise had a dramatic decrease (heck, even the new, good production we saw in BB19 was too late to save the sinking ship that was BBUK ) in viewers. So it has to be asked; was it actually CBB18?

Correlation or causation? If it didn't, what else ended BBUK? (Ben Frow practically killed it, yes, but I mean, what caused the decrease in viewers?)