The housemates will have to take it in turns to transmit shows over the next two days to earn a luxury food budget.
[Big Brother Day 18 - Latest images]
Copyright: Channel 5The Situation and Martin Kemp will front a kids TV show called The Growlers, while Julie Goodyear is in charge of reading the news.
Prince Lorenzo must take on the role of Mr Johnny Tickles, a children's entertainer, while Coleen Nolan and Julian Clary are co-hosts of Big Brother's Big Deals, BBTV's shopping channel.
Meanwhile, Ashley McKenzie and MC Harvey must play quiz show contestants on a celebrity special of ASK 100.
All the housemates must pass their individual tasks to help the group secure the luxury shopping.
Celebrity Big Brother continues every night on Channel 5.