The Hardy Boys / Nancy Drew Mysteries - Season 1 - Eps 9: The Mystery of the Flying Courier
Joe Hardy makes his singing debut at a disco where he and Frank become involved in a record piracy case. At the club, Frank recognizes a girl who supposedly has been missing for years. When she is arrested, the brothers embark on an investigation of a crooked disc jockey and other unscrupulous musical characters.
About The Hardy Boys / Nancy Drew Mysteries

Title: The Hardy Boys / Nancy Drew Mysteries
First Air Date: 1977-01-30
Last Air Date: 1979-01-14
Status: Ended
Rating: 7/10 (from 26 votes)
Language: EN
Seasons: 3
Total Episodes: 46
Network: ABC
Genres: Mystery, Action & Adventure
Production Companies: Unknown
Synopsis
The Hardy Boys/Nancy Drew Mysteries is a television series which aired for three seasons on ABC. The series starred Parker Stevenson and Shaun Cassidy as amateur sleuth brothers Frank and Joe Hardy, respectively, and Pamela Sue Martin as girl detective Nancy Drew. The Hardy Boys/Nancy Drew Mysteries was unusual in that it often dealt with the characters individually, in an almost anthological style. That is, some episodes featured only the Hardy Boys and others only Nancy Drew.
Cast

Shaun Cassidy
Joe Hardy

Parker Stevenson
Frank Hardy