When does the selection process begin? I don't mean the auditions because some of them seem to get a free pass.
Take Gina and Dexter for example, both of their backstories began to be fabricated last December and yet Channel 5/Big Brother appear totally unaware that both of their made up lives are just a figment of some PR company's imagination and one of them may even end up collecting the Jackpot (if they haven't already agreed to split it!)
That would be a travesty, that much money is more than they have ever seen before!
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ad nauseam - ad infinitum!