In 'Northern Exposure', in which fictional Alaskan town is the series set?

In 'Dawson's Creek', in which fictional town is the series set? In 'Pretty Little Liars', who sends threatening messages to the girls? In 'Riverdale', which classic comic series inspired the show? In 'Twin Peaks', what does Agent Cooper famously love? In 'Hill Street Blues', what does the sergeant say at the end of roll call? Which 1960s sitcom features a witch named Samantha married to a mortal? Which 1960s sitcom features a genie who lives in a bottle? Which 1960s sitcom features a talking horse?