premise: Riverdale has an executive producer.
hypothesis: Riverdale (1997 TV series) . Riverdale was developed by the producers of the British soap opera Coronation Street and produced by Epitome Pictures Inc. in association with CBC Television . Riverdale (2017 TV series) . It was adapted for television by Archie Comics ' chief creative officer Roberto Aguirre-Sacasa and executive produced by Greg Berlanti .