Olympic swimming champion Michael Phelps is spotted in an airport with his super-hot girlfriend. As soon as cameras spot them they split in opposite directions. So what are they trying to hide?.

A woman shares a story of how overeating during pregnancy put both her life and her baby's at risk; a man diagnosed with Tourette's at the age of 7 discusses his new book about living with the disorder and some of its early warning sign.

Jerry tries helping the owner of a small restaurant attract customers by giving him a suggestion; George has Elaine take an I.Q. test in his place.

Apparently size does matter. The sibling rivalry between Frasier and Niles reaches a fever pitch when they compare IQ scores and learn one of them has an I.Q. score much larger than the other.

Frasier invites his father on vacation for some father-son bonding. Of course, Frasier’s idea of four-star accommodations comes to a screeching halt when Martin suggests a camping trip in a Winnebago. Niles and Daphne join along for the ride.

Cox bullies J.D. into doing a total workup on Jordan's world-traveling brother who claims to have beaten leukemia.