This series was so popular that it inspired the equally loved Nancy Drew series (and even paired the two on television in the 1970s). It followed Frank and Joe Hardy, amateur detectives who stumble upon mysteries to solve and murder cases to crack. It was popular with young boys because of the wholesome nature of the two characters who unwittingly got involved in clashes of good and evil. And, of course, good always prevailed. There was only a brief TV series, so maybe it’s time to bring the Hardys back for a new generation of boys, this time as the Hardy Men with Justin Timberlake as Joe and Sean Penn as Frank.