Medical Investigation was an American medical drama television series that began September 9, 2004, on NBC. It ran for 20 one-hour episodes before being cancelled in 2005. The series was co-produced by Paramount Network Television and NBC Universal Television Studio The former controls North American distribution rights, while the latter distributes outside North America. The series featured the cases of an elite team of medical experts of the National Institutes of Health who investigate unusual public-health crises, such as sudden outbreaks of serious and mysterious diseases. In actuality, medical investigative duties in the United States are normally the responsibility of the Centers for Disease Control and Prevention and local health departments, while the NIH is primarily a disease-research and -theory organization. The series existed in the same television universe as Third Watch and, by extension ER. A special two-part crossover event aired on February 18, 2005, establishing the television-universe connection by featuring the Third Watch and Medical Investigation teams working together in MI's Episode 17: "Half Life" and Third Watch's Episode 16 of the sixth season: "In the Family Way". The story was about a series of Marburg virus cases in New York.

From Executive Producer Dick Wolf, this true crime investigative series follows veteran prosecutor Kelly Siegler, and her rotating team of seasoned detectives, as they travel to small towns across the country and help local law-enforcement agencies dig into unsolved homicide cases that have lingered for years without answers or justice for the victims due to lack of funding and proper forensic technology.

Freddie and Stuart are an old couple who have been together for decades and bicker constantly. Their lives are turned upside down by their new upstairs neighbor Ash, who is sure to cause trouble in their mundane lives.

A bald, lollipop sucking police detective with a fiery righteous attitude battles crime in New York City.

A teacher and a surgeon are rocked by scandalous accusations after they enjoy a seemingly innocent date.

Each episode features two A-list celebrities like you've never seen them before - syncing their hearts out in hysterically epic performances. Hosted by LL Cool J with colorful commentary by social media maven and supermodel co-host, Chrissy Teigen. The mic is off, the battle is on!

Detective Charlie Hudson teams up with what he calls his "highly trained law enforcement animal" German Shepherd dog named Rex who he prefers to team up with because he doesn't talk his ear off.

Young, urban newlyweds Paul and Jamie Buchman try to sustain their marital bliss while sidestepping the hurdles of love in the '90s.

Inspired by actual cases and experiences, Numb3rs depicts the confluence of police work and mathematics in solving crime as an FBI agent recruits his mathematical genius brother to help solve a wide range of challenging crimes in Los Angeles from a very different perspective.

Echo is a member of a highly illegal and underground group of individuals whose personalities have been wiped clean so they can be imprinted with any number of new personas. Confined between missions to a secret facility known as the Dollhouse, the "Actives" are hired by the wealthy, powerful and connected to wholly become—with mind, personality and physiology—whomever the client wants or needs them to be. They know no other life than the specific engagements they are in at that time—or do they?

The third installment of the “Law & Order” franchise takes viewers deep into the minds of its criminals while following the intense psychological approaches the Major Case Squad uses to solve its crimes.

A suburban family that takes in a mysterious teen naive to the world around him. As Kyle begins to show signs of brilliance, solving the mystery of his origin and potential abilities becomes the family's mission.

Thomas Magnum, a decorated former Navy SEAL, returns home from Afghanistan and applies his military skills to become a private investigator in Hawaii taking jobs no one else will—with the help of fellow vets T.C. Calvin and Rick Wright, and former MI:6 agent, Juliet Higgins.

The Philadelphia homicide squad's lone female detective finds her calling when she is assigned cases that have never been solved. Detective Lilly Rush combines her natural instincts with the updated technology available today to bring about justice for all the victims she can.

Bizarre things start happening in the little New Mexico town where UFOs were spotted in 1947. Cut to 1999, when a cute high-school student saves the life of a teenage waitress. Surrounded by cliques of clever, angst-filled classmates, the two form a bond that threatens the survival of a secret universe involving superhuman powers, a yen for hot sauce and an alien gene pool.