‘Supernatural’ celebrates 300 episodes
The CW’s longest-running series, “Supernatural,” celebrates its 300th episode Thursday — reaching a rare TV milestone shared by the likes of “Gunsmoke,” “Law & Order,” “The Simpsons” and “NCIS.” The longest-running fantasy series in TV history is currently in its 14th season (it’s been renewed for Season 15) and follows demon-hunting brothers Sam (Jared Padalecki)...