I believe it was Shaun Cassidy and Parker Stevenson who played Joe and Frank Hardy. I remember this show quite well, I was a big Hardy Boys fan and watched this show every week. One thing I do remember about the show, the show tried to promote Shaun Cassidys singing career and everytime that Joe Hardy (Shaun Cassidy) would get onstage to sing Frank (Parker Stevenson) would always get distracted or would have to leave so he was never able to see Joe sing. I was very sad when this show was cancelled.
