Barney Miller was my personal favorite sitcom of all time. It was syndicated even as new episodes were airing. My family watched two episodes every night before dinner for years.
My favorite Dietrich line: (While walking into the squad room, munching on a hot dog) “Hey, where’d you get the atom bomb?”
I always loved the Dietrich character. He was like Spock, he knew EVERYTHING. When a suspect called him a "honkey", he gave the etymology of the word.