C4 bids farewell to Big Brother

Channel 4 is bidding farewell on Friday evening to one of its biggest brands with the final of Ultimate Big Brother.

The long-running reality game show has been a summer staple on C4 since 2000.

Big Brother has been a huge ratings hit for the channel, with peak viewing of around 8 million in 2002, but audience interest has waned in recent years.

Will Gompertz reports.