Defectors was a game show where contestants scored based on the percentage of audience members who voted for them.
Four contestants competed on each edition. For each question asked during the game, the audience had to use a console to pick which of the contestants would give answer a question correctly. The percentage of votes that each contestant received would be scored as points with a correct answer. Unlike most game shows, the studio audience competed against each other as well as the contestants; the winners of the game would be the contestant who survived the game, and the studio audience member who successfully chose that contestant more often. The game constisted of three parts.
This part featured general knowledge questions, each containing four possible answers. Orford would ask the audience to pick the contestants they thought would correctly answer two questions. The contestants would be asked those questions, scoring points accordingly for correct answers. After the first two questions, the audience would vote again for two more questions, and could defect their choice to a different contestant if they wanted.
In this part of the game, Orford would give announce a category, and the contestants each had ten seconds to explain why the audience should choose them. After each contestant had opined, the audience would vote for the contestant they thought knew the category more. Each category contained three questions, again with four possible choices, and, like the previous round, contestants scored based on the percentage of audience members who voted for them. After two categories were played in this manner, the player with the lowest score was eliminated from the game. The remaining three contestants would play three categories, with the audience voting as before, and the two players with the highest scores after the fifth category advanced to the final part.
To start, the scores were reset to zero. In this part of the game, the questions were asked on the buzzer, and the audience now had to vote before every question, on which they were given the category. When time was called, the player with the highest score won the game and £1,000.
At certain points during the game, the audience member who correctly defected more often to that point would be revealed. The audience member who correctly defected more often during the whole game also received £1,000.