A former CIA operative (Cumming), who has since built a "normal" life as a gifted professor and writer, is pulled back into his old life when the NYPD needs his help to stop a serial killer on the loose.
Unlike HBO, Showtime, or Netflix, the traditional broadcast networks (ABC, CBS, NBC, Fox) need to attract advertisers, which means their dramas cannot be too edgy, dark, or explicit, which makes for lighter binging than Breaking Bad or Game of Thrones.
These crime and police procedurals mix genuine thrills with just the right amount of lighthearted banter, reeling you in without leaving you too depressed to finish your dinner. The USA network is well represented.
Not saying these lighthearted series are formulaic, but you can create your own by pairing an eccentric psychic, novelist, conman, anthropologist, magician, etc. with a grizzled cop, private investigator, FBI agent.