Thomas Banacek (played by George Peppard) was a suave, debonair, freelance insurance investigator who specialized in taking on impossible theft cases at twice the normal insurance company recovery fee.
He was well-known for his idiomatic Polish sayings, which, though peculiar, had a curious and penetrating logic to them:
The show ran for two seasons in the early '70s. At the end of a typical episode, Banacek's chauffeur Jay Drury (Ralph Manza) would often ask him “What does it mean, Boss?” Drury himself was never at a loss for a possible solution to a case, but Banacek always shot it down. Another long-running gag was for other characters in the show to mispronounce his name, often on purpose.
Banacek often turned to rare-bookstore owner Felix Mulholland (Murray Matheson) and/or his sometime lover Carlie Kirkland (Christine Belford) for help in finding obscure information that helped him solve his cases.
His investigatory talents allowed him to live well. In addition to his limo and driver, he drove an antique 1941 Packard convertible, and lived in a mansion on Beacon Hill in Boston. He had a mobile phone in each of his cars at a time when such things were rare and costly. Brilliant, educated, and cultured, Banacek was also an unapologetic ladies man who enjoyed the company of beautiful women — but he was street-smart too, and knew how to handle himself in a fight.
There was always an ambitious insurance agent trying to beat Banacek to the prize (and thus save the insurance company Banacek's hefty fee). The most notable of these was Carlie Kirkland (Christine Belford). Her technique was simple: she got close to Banacek to learn what he learned in the course of an investigation, then tried to recover the stolen item just ahead of Banacek. Banacek, of course, was fully aware of this, but was so good at what he did that he ended up winning anyway.
The TV critics liked Banacek, but in the two years it was on the air, it never got the breakthrough ratings it might have. In the end the show was a casualty of the troubled personal life of its star. Peppard quit Banacek before it could be renewed by NBC for a third reason. Why? He didn't want his ex-wife, Elizabeth Ashley, to get a larger percentage of his earnings as part of their divorce settlement.