Nero Wolfe (2000)
Nero Wolfe aired on A&E from April 2001 through August 2002 and included 21 episodes (many shown in 2 parts) over 2 seasons.
The series features Maury Chaykin as the titular character, a New York City-based private investigator, and Timothy Hutton as his associate Archie Goodwin.
A previous series also titled Nero Wolfe and starring William Conrad as the private detective aired in 1981. It is not (yet) available on DVD.
Original air dates: 03/05/2000 and 04/22/2001 to 07/15/2001
Original air dates: 04/14/2002 to 08/18/2004