The Plainclothesman

The Plainclothesman
Ken Lynch (face unseen) and Jack Orrison during broadcast
Created byHenry Opperman
Written byDonald S. Sanford
Lawrence Menkin
Directed bySean Dillon
William Marceau
StarringKen Lynch
Jack Orrison
Country of originUnited States
No. of episodes233
Production
Running time30 minutes
Original release
NetworkDuMont
ReleaseOctober 12, 1949 (1949-10-12) 
September 12, 1954 (1954-09-12)

The Plainclothesman was the first American police procedural series, and was broadcast on the DuMont Television Network from October 12, 1949, to September 12, 1954.