Here's a wicked spoiler that I've shamelessly copy/pasted from www.weezerandgeezer.com
So the Geezer came through for us. He was at the Doctor's office getting a checkup because that's what old guys do when the Dr. started asking about the show. Apparently a father and a daughter from the Santa Barbara area were in there getting physicals for "A reality show" and apparently when they went back for a second visit they told the doctor that they had not been chosen.
Personally I don't buy it. If you get sent back to the doctor for a second visit it's because you've been cast.
So either the doctor was full of shit, or you can expect to see a father/daughter combo on AR5.