Q.E.D. is a 1982 short-lived adventure series set in Edwardian England, starring Sam Waterston as Professor Quentin Everett Deverill. The Professor was a scientific detective in the mold of Sherlock Holmes, and the series had a smattering of what would later be called steampunk. In the show, the lead character was known primarily by his initials, Q.E.D; the reference here is that Q.E.D. usually stands for quod erat demonstrandum, a statement signalling the end of a proof. The show aired on the CBS network in the United States, and on Channel 4 in the United Kingdom.
Q.E.D. (Season 1)
Target: London (Episode 1) 7.0
Writer: Robert Schlitt
Air date: 1982-03-23
Runtime: 45 min
Overview: A wealthy, if abrasive, Harvard professor quits in the middle of a lecture and moves to London where he uses his scientific background to investigate a missing person from a yacht off the British Coast.
The Great Motor Race (Episode 2)
Writer: Ronald Austin
Air date: 1982-03-30
Runtime: 45 min
Overview: Deverill is alerted to a cross-country automobile race for which he lends his talents to one of the entrants. Kilkiss also assists one of the foreign entrants.
Infernal Device (Episode 3)
Writer: David Karp
Air date: 1982-04-06
Runtime: 45 min
Overview: Deverill is contracted to develop a safer detonation mechanism for mining. Meanwhile Jenny and Phipps are kidnapped at a soup kitchen as a way to pressure Deverill into using his invention for political purposes.
The 4:10 to Zurich (Episode 4)
Writer: Jeremy Paul
Air date: 1982-04-13
Runtime: 45 min
Overview: After discovering a potent nerve agent, an associate of someone with whom Deverill has been working is shot on Deverill's doorstep. With his dying breath, the man gives Deverill a clue about a train to Zurich.
To Catch a Ghost (Episode 5)
Writer: Julia Jones
Air date: 1982-04-20
Runtime: 45 min
Overview: Jenny visits her sick aunt, from whom she learns of a potential ghost haunting the residence. She then enlists Deverill to come investigate.
The Limehouse Connection (Episode 6)
Writer: William Froug
Air date: 1982-04-27
Runtime: 45 min
Overview: A series of unexplained deaths among Chinese workers in London leads Charlie and Deverill to investigate. The investigation complicates when British and US officials get involved.

Seasons
Episodes 6
Episodes 1