I would love it if on a Friday once the weekly eviction has been done, Davina then opens the lines of the remaining housemates for us to vote whom we want to nominate for eviction.
The normal nomination and save + replace process should be carried out so that the housemates suspect nothing abnormal is happening, however on the Friday the 2/3 housemates with the most votes from the public are called to the DR. Big Brother then reveals to them that the nominations are false and that the public have been voting who they want to nominate for the housemates to evict, and it is them - the others watching on screen.
The screen then goes off, so that the nominees cant influence the votes, and are played the sound from the living room of the housemates discussing who they want to leave (those who stay will know who wanted them out which could cause friction) - the majority vote wins, the nominees are allowed to exit the DR and cue Davina talking to the house to announce which one of them has been evicted (they would already know, but Davina could sound apologetic and be like, your housemates have been voting rather than us).
Opinions?