Diagnosis Murder

Mark (Dick Van Dyke) goes under cover as a nursing home patient to find out who is murdering the residents. With Barry Van Dyke and Victoria Rowell. Guest star: Charlotte Rae.

Mark battles the Marines to get to the truth behind an apparent suicide outside Steve and Jesse's restaurant.

Mark's friend, singer Danielle Law, goes to him for help after being attacked by an unidentified man and eventually reveals a stunning secret.

Mark competes on a popular television quiz show to find the final answer to a difficult question of life and death.

Mark gets wrapped up in the world of high fashion and designer drugs while tracking down the person responsible for planting a bomb that killed his friend on his wedding day.

Mark investigates the murder of a young doctor whose wife was blinded in a tragic accident the day before his death.

Mark comes to the defense of his schizophrenic former student, who can't explain his alibi after being charged with murder.

A priest suspected of murder hears the true killer's confession and can't break his vow of confidentially, so Mark goes under cover to clear his name and put the real killer behind bars.

A friend hired to revamp Mark's office ends up dead, wrapped up in a roll of carpet, and the murderer's trail leads all the way to Egypt.

Dr. Sloan is concerned about Alex's relationship with a murder suspect; Madison enters into a torrid romance with a mysterious, wealthy man.

To investigate a possible murder, Dr. Sloan goes into a house of roommates who are monitored 24 hours a day by cameras for a national television series.

Dr. Sloan is concerned about Alex's relationship with a murder suspect; Madison enters into a torrid romance with a mysterious, wealthy man.

Someone kills a medical student, drains his blood and stores the corpse in the Community General morgue.

Mark's magic instructor turns up dead after an apparent surfing accident, but Mark suspects the deceased's twin brother may have been the one with a trick up his sleeve.

Mark discovers that an impassioned love affair between a nurse and a 17-year-old hospital worker may be the motive for murder.

Dr. Sloan's son Steve nearly dies in a traffic accident then claims to have seen a murder take place in his hospital room.

Mark attempts to help an amnesia victim, unaware she is a mob killer who is faking her condition as an excuse to be admitted to the hospital.

Mark takes on the extortionists responsible for murdering the twin sister of a young woman who claims Dr. Travis fathered her infant son.

Jesse and Amanda stand in the way of a killer who's scheming to get their multi-million dollar inheritance.

A newspaper reporter goes to Mark for help when she suspects a New Age religion is responsible for the stabbing of her dance partner.

Mark, deeply concerned about his son's new love interest and stuck home with a broken leg, takes to eyeing his neighbors through binoculars, a la Alfred Hitchcock's ``Rear Window.``.

Mark, deeply concerned about his son's new love interest and stuck home with a broken leg, takes to eyeing his neighbors through binoculars, a la Alfred Hitchcock's ``Rear Window.``.

Mark investigates the death of a 92-year-old millionaire who he suspects was murdered by one of his three children.

Dr. Sloan investigates the demise of a television star who may have died because of compulsive dieting.

Mark's investigation of a hit-and-run death leads him to a priest; Mark is criticized for treating an elderly patient for free.

When a comic is found murdered in his dressing room while hosting a telethon, Mark discovers many suspects who had grudges against the man.

Dr. Sloan investigates a controversial attorney who confesses to murder while near death but recants after he recovers.

The shooting death of a patient opens a doorway to Mark's past that forces him to face the disappearance of his father.

When a filmmaker begins using Community General Hospital as the location for an eerie documentary, Dr. Sloan discovers it may be haunted.

Dr. Sloan tries to help Amanda when she becomes involved in an incident involving the Chinese government.

When a big-time bookie and a gambling heart surgeon turn up dead, Mark bets that something foul is afoot.

A teenager, wrongfully accused of murdering a gang leader, works with his older brother, Steve and Mark to find the real killer.

Mark and Amanda race to cure a mysteriously ill pilot and his crew before the plane crashes into the Swiss Alps.

A prominent doctor is murdered, and three others are prime suspects; with Wayne Rogers; Chad Everett; Jack Klugman; Bernie Kopell.