Furuhata Ninzaburo & Opening Theme

Furuhata Ninzaburo was a great detective show, comparable to Columbo in the basic premise, but it had a more philosophical and dandyish protagonist, brilliantly played by Mazakazu Tamura. It also had a great opening theme, with a James Bondish riff (probably overtly) at the beginning, but a totally different flair once it got going.