Dexter

Dexter is an American crime drama television series that aired on Showtime from 1 October 2006 to 22 September 2013. Set in Miami, the series centers on Dexter Morgan, a forensic technician specializing in bloodstain pattern analysis who leads a secret parallel life as a vigilante serial killer, hunting down murderers who have slipped through the cracks of the justice system.

In Season 1 Episode 7, "Circle of Friends", suspect Neil Perry crawls out his back door to evade police and bumps into a gnome on the way. More gnomes stand elsewhere in the yard.

In Season 3 Episode 2, "Finding Freebo", person of interest Zack Adelman has several gnomes decorating his yard among many plastic flamingos and other birds.