When Cavanaugh arrives, the post-op ward is full of patients, some of whom are too injured to be moved. However, after he has his stroke, the post-op is empty save for him.
When B.J. and Hawkeye are talking to a reporter about B.J.'s invention, the reporter puts his papers in the folder twice.
Cardiac defibrillation was first done in Switzerland in 1899 on dogs. They used it to stop then restart the dogs' hearts. The first use on humans was in 1947 at Case Western Reserve University. A 14-year-old-boy was saved using the method. This was known by the time of the Korean war and was not invented as part of that war.
When BJ is going to use his 'defibrillator' on the patient, he tells Klinger, "When I say to give me the juice, turn it OFF and ON real fast". BJ should have said to turn it ON and OFF real fast.
Hawkeye and B.J. are in the shower when a reporter comes in and starts questioning Hawkeye. Hawkeye dries off, puts on his red bathrobe and walks out with the reporter. Hawkeye didn't tie up the bathrobe, leaving it open as he walks across the compound.