ITV bosses are planning to launch a Who Wants To Be A Millionaire? spin-off show, according to a report.

50/50, based on Millionaire's famous lifeline, will see pairs of contestants deciding whether to accept or reject alternative answers to questions.

A source told The Sun: "The couples will be asked a question and then given an answer. They can either accept that answer or gamble on another one. It's quite a tense game as the first answer will often sound like the right one."

Millionaire producers recently made changes to the show's format, in a bid to boost flagging ratings.