Project UFO was an NBC television series which lasted two seasons, from 1978 to 1979. Based loosely on the real-life Project Blue Book, the show was created by Dragnet veteran Jack Webb, who pored through Air Force files looking for episode ideas.

The show featured two U.S. Air Force investigators charged with investigating UFO sightings. The first season starred William Jordan (as "Maj. Jake Gatlin") and Caskey Swaim (as "Staff Sgt. Harry Fitz"). Jordan was a rather nondescript leading man, while Swain added diversity as a Southerner with a pronounced accent. In season two, Jordan was replaced by Edward Winter (as "Capt. Ben Ryan"). Aldine King ("Libby") was another regular. Dr. Joyce Brothers appeared in two episodes.

In retrospect, "Project UFO" anticipated many of the themes of the X-Files, though of course without that show's romantic subtext or anti-government (or for that matter, anti-alien) paranoia. As with Blue Book, many of the UFO sightings on "Project UFO" turned out to have conventional explanations. Some, however, were left unexplained, and suggestive of alien contact. By the second season, the investigators had themselves experienced a UFO sighting.

In an odd reversal of the Scooby-Doo dynamic, the series eventually settled into a pattern in which the investigators would spend most of the hour uncovering some conventional explanation for a UFO sighting, only for the last five minutes to reveal that UFOs (or some similarly unexplained phenomema) were involved after all.

From Wikipedia