The Wire

Bubbles was largely based on a real Baltimore drug addict and police informant who went by that name. The real Bubbles, who would slur his speech much more than the fictional character, first started working with the cops near the early 1960's after being arrested for a burglary. He spent the next few decades as an informant, leading to the arrest of several hundred felons and getting paid at least $50 for each one caught. His near-photographic memory and ability to blend into the scene made him one of the best in the city. Eventually he would start using the hat method portrayed on the series, where he acted as if he was selling hats and would place one of a certain color on the head of those the police should arrest.

Throughout the last two seasons, Carcetti repeatedly refers to a possible gubernatorial challenge in 2008, after serving two years as Baltimore mayor. But Maryland holds gubernatorial elections in off years - 2006, 2010, etc. The new governor would have been elected the same year that Carcetti was elected mayor - 2006 - and up for re-election in four years, not two.

In every episode, after the opening credits a quote appears on the screen that will be spoken by a character in that episode.