When Phoebe is yelling at Officer Dean out of the attic windows, it shows that the attic windows can be opened outward since she almost falls out if those windows. This is the only time the windows are opened that way in the entire series.
Holly Marie Combs (Piper) and Roark Critchlow (businessman Robert Pike) will later co-star in Pretty Little Liars as parents to Aria and Hannah, respectively.
The title comes from the location of the series (San Francisco) and the plot that includes the consequences of persons affected by The Seven Deadly Sins (lust, gluttony, greed, sloth, wrath, envy and pride).