[Jason.]

BB14 changed a lot.

The nominations process.
Themed series.
Scrapping open auditions.
More recruits.
More interference.
More outside contact.
Twists constantly.

Then BB15 came along...

And set the tone for the next three series. Negativity and manufactured conflict.
BB15, CBB14, and CBB15 were all victims of this.

Before CBB11/BB14, the show was more like C4.

BB13 was the most C4 style series we've had on C5. Great housemates who provided the drama themselves, less interference, and not many twists. Just one major twist for the series, like the White Room.