Evidence the producer's don't use Google

[Pete.]

http://bigbrother.channel5.com/housemate/janice-dickinson

Age: Unknown

Simple Google search would have told them that Janice is 60.

[Ashley.]

She's never given out her age in public though, hasn't she? So I don't blame producers for respecting her privacy. Even Wikipedia can't determine her real age.

[BB4fan]

Perhaps they just haven't bothered putting her age there yet.