King of the Hill Episode 11.10 Hair Today, Gone Today

Waiting for aliens on the vernal equinox, Dale believes he has traveled back in time with a time traveler and thinks the world will end if he runs into his former self. Unaware that the "time traveler" is actually Kahn's nephew, Dale proceeds to act like he needs to avoid his former self to prevent the end of the world. As his antics become increasingly erratic to avoid his former self, Nancy struggles with John Redcorn's advances. Nancy's hair begins to fall out and she consults her doctor who puts her on several pills including Xanex thinking that stress is causing her hair loss. When the pills don't work, Nancy visits her mother to see if heredity is to blame. Nancy learns that she is a lot like her mother and her hair is falling out due to the stress of ending her affair with John Redcorn. All she has to do to get her hair back is reunite with Redcorn.