Back in the summer of 2013, the Syfy Channel debuted a little thing called “Sharknado,” a deliberately campy goof in which a bizarre weather anomaly caused a tornado filled with killer sharks to bear down upon Los Angeles in an orgy of barely adequate special effects while gnawing on a variety of vaguely familiar second-tier celebrities struggling mightily to keep straight faces. The end result was not “good” in any conventional sense of the term, but the combination of a certain goofball spirit and that undeniable grabber of a title came along at the point during the dog days of the season when people were desperately in search of some kind of weirdo diversion (it should be noted that at this point and time, the world as a whole had not yet turned into one giant metaphorical sharknado). It became a moderate cult sensation amongst people who had grown tired of the likes of “The Room” and were looking for a new cinematic oddity to goof on. Each summer since, Syfy has seen