Former Schenectady resident Antonio Ferrera did much of the film work for “The Gates,” an 89-minute documentary about the decorating of New York City’s Central Park in bright saffron orange-yellow during the winter of 2005. The show will premiere for a national audience next Tuesday at 10 p.m. on cable television network Home Box Office and will air several more times this month and March. Posted on February 21, 2008.