Those who do not remember the past sometimes leave a lot of cash on the table. For years, teenagers spent their summer nights at drive-in movie theaters, eating popcorn and watching movies like I Was A Teenage Werewolf.
Though the current generation of TV bosses doubtless includes some people who were the result of ancillary activities occurring in the back seats of those cars, it somehow never occurred to them to try the same strategy 10 or 12 years ago when they began trying to convert their summer schedules into something more profitable than a dumping ground for reruns.
But that all began to change in 2013 with summer thrillers like Under the Dome and Extant. Glenn Garvin looks at Zoo on CBS, the latest new "Summer Popcorn TV" offering.