The Trials of O'Brien

Although I remember thoroughly enjoying the show at age 15-16, I was aware that it was more adult than most TV fare. I seem to remember only individual incidents rather than plot lines. For example, O'Brien seemed to be having an affair with his ex-wife and them being in a panic when he has lost the key to his apartment and she picks the lock with a hairpin. Always having been a Peter Falk fan I would watch anything he was in, and realized early in life that he was somewhat unconventional. Another memory of the show is of O'Brien driving around in his old convertible with a briefcase of important papers that he has just thrown on the back seat. Would love to see some of the episodes as an adult.