The discussion centers around preferences for fictional TV detectives to investigate a murder case. Columbo emerges as a popular choice, praised for his quick deduction skills and engaging style. Other notable mentions include Sherlock Holmes, with actors like Benedict Cumberbatch and Jeremy Brett highlighted for their portrayals, and Jim Rockford from "The Rockford Files," known for his charm and humor. The conversation also touches on various British detectives, such as Inspector Morse and characters from shows like "Minder" and "The Sweeney." Humor is prevalent, with references to the quirks of these detectives and their fictional worlds. The participants express a desire for detectives who would ensure justice is served, with some jokingly suggesting more unconventional choices like Dexter or even cartoon characters. Overall, the thread reflects a lighthearted exploration of beloved detective characters and their unique investigative styles.