Two marathon runners interrupt the monologue (one week early, it shall be noted); to honor the possible WGA strike, Bill Scheft chooses not to reveal the punchline to a Dick Cheney joke; Jerry Seinfeld plugs Bee Movie and gets caught in the crosshairs on "Alan Kalter's Celebrity Interview"; Joe Torre dodges questions about his next managerial gig.

The four remaining ladies must now introduce Brad to their parents! After the visits, one bachelorette will be sent home.

Penny hosts a Hallowe'en party, putting Leonard, Sheldon, Wolowitz, and Koothrappali through a new test of their social skills.

Episode info coming soon ..