According to Comicbook.com, Riverdale mixed things up this year with a musical episode, and it looks like that will soon become an annual thing. Riverdale showrunner Roberto Aguirre-Sacasa has recently teased what fans can expect with Season 3's musical episode, which was confirmed during San Diego Comic-Con. As far as what musical the show will feature, that remains to be said. Aguirre-Sacasa explained, ?There are a couple musicals we?ve been circling." The season three premiere of Riverdale, is set to premiere on Wednesday, October 10th, at 8pm on The CW.