The Return of the World's Greatest Detective

The Return of the World’s Greatest Detective is a 1976 TV movie which stars Larry Hagman as cop Sherman Holmes who because of an accident which resulted in a substantial head injury has made him think to be Sherlock Holmes.
This also has Jenny O’Hara as Dr Joan Watson but not that Dr Watson.
It is a loose remake of the 1971 feature film They Might Be Giants which has the same premise of a man believing him to be Holmes.
Difference this time is that The Return of the World’s Greatest Detective was intended to be a pilot for a possible series but ultimately it wasn’t picked up.
Not a bad remake of They Might Be Giants and Hagman not bad as the cop believing himself to be Sherlock Holmes.
Incidentally this was one of Hagman’s many roles in between I Dream of Jeannie & Dallas.