In the Heat of the Night is an American television series based on the film and the novel of the same title. It starred Carroll O'Connor as the white police chief William Gillespie, and Howard Rollins as the black police detective Virgil Tibbs. It was broadcast on NBC from 1988 until 1992, and then on CBS until 1994. Its executive producers were Fred Silverman, Juanita Bartlett and Carroll O'Connor. Wikipedia
Parker: I got a call from Randy Calhoun.
Bill Gillespie: Tell him we're closed.
Parker: It's about a murder.
Bill Gillespie: Did he commit it?
Parker: I don't think so. I forgot to ask.
Bill Gillespie: Well, that might have been an important question.