Sheldon gets accused of sexual harassment at the University and winds up getting Leonard, Raj and Wolowitz in trouble.

Kate is ready to give up her dream of designing clothes so Walden devises a plan to have Alan invest in her future using Walden's money. However, the pressure of living a lie is wreaking havoc on Walden physically.

While the FBI try to confirm that Reese is the man they've been seeking, Finch and Fusco take on a new Number: a high school student with knowledge of computers.

The Project Runway designers pay their tribute to the armed forces! The four remaining designers are paired with four female veterans from an array of different military branches. The designers will have to battle it out to see who can create a design that best suits each veteran for each of the special events they are attending. Special guest judges for this episode include actress Katie Holmes and designer Carmen Marc Valvo.

The guys endure a shakedown at a discount store, test fate with the ''Wheel of Doom'' and attempt to become Hibachi chefs.

Sherlock and Joan investigate the murder of the general manager of a high-end Manhattan hotel whose body is found inside an industrial laundry machine. Meanwhile, since Joan's time with Sherlock is almost up, he offers her an apprenticeship.

Regis Philbin, Zedd

Arnold Schwarzenegger, Chumlee & Rick Harrison, Ziggy Marley

Stephen Fry and Alan Davies present another selection of clips from the series.

Graham is joined on the show by Josh Groban, Billie Piper, Frank Skinner and Example.