A Klink, a Bomb and a Short Fuse - S2-E8
Continuity mistake: Newkirk comes out of Klink's office with a code book, and passes it to Le Beau, who immediately holds it up and opens it. In the close up, Carter's hands bring up a book with a camera in it, and Le Beau brings the book out from his back and opens it again.
A Klink, a Bomb and a Short Fuse - S2-E8
Continuity mistake: Klink comes out to demand his code book be returned. In the wide shot, Hogan has a book in his right hand. In the close up, when he points at Klink with his right hand, the book is gone, and back in the wide shot.
A Klink, a Bomb and a Short Fuse - S2-E8
Continuity mistake: The lapels of Schultz's jacket have yellow rectangles where the insignia of rank are. Normally, he has four eagles on them meaning senior Sergeant. In the close ups close to the end, the top piece is missing on the right lapel.
A Klink, a Bomb and a Short Fuse - S2-E8
Continuity mistake: When Burkhalter is standing with Klink after he first arrives, Burkhalter's arms are by his side. When the camera cuts to a close-up, Burkhalter's arms are crossed behind his back, much too quickly than is possible.
Answer: It's a solitary cell. Steve McQueen, star of 'The Great Escape' is known as the 'Cooler King'.