Front Page Detective: Galahad (1951, DuMont Network) 

Front Page Detective stars Edmund Lowe as David Chase, a newspaper columnist who helps police solve especially difficult mysteries. The title derived from a popular true-crime magazine of the same name, and stories were based on material from the magazine.
Front Page Detective is an American crime drama series which aired on the DuMont Television Network on Fridays at 9:30 p.m. ET from July 6, 1951, to September 19, 1952, and in October and November 1953. The program was then in broadcast syndication for several years thereafter.
Teleplay by Jackson Gillis and David Victor
Directed by Arnold Wester
starring Edmund Lowe (as David Chase)
with Paula Drew (as Sharon Richards)
and Frank Jenks (as Lt. Rodney)
Guest cast:
Emory Parnell
Helen Brown
John Phillips
Nan Boardman
Lyle Clark
Jorja Curtright
Houseley Stevenson
Myron Welton
Synopsis:
David Chase becomes involved with an ex-newspaper photographer who has
a photo of a well-known woman that he wants to us in a blackmail scheme.
Aired on Nov. 23, 1951