“Riverdale” creator Roberto Aguirre-Sacasa has come up come with another dark reboot of another corner of the Archie Comics universe — a dark, horror-inflected take on teenage witch Sabrina Spellman for “The Chilling Adventures Of Sabrina.” Two seasons were shot from February through December 2018 in and around Vancouver. I was the field producer/director interviewer for a set visit and cast interviews for E!