Paley Center Mixtapes: Hotter than Hellmouth

The Paley Center mashes up classic and cult shows for its mixtapes series, which screens a two-hour program three times a week. This month’s edition includes clips from nearly two dozen sources—such as The X-Files, Twin Peaks, The Simpsons and The Twilight Zone—and closes with the full musical episode of Buffy the Vampire Slayer.