MTV targeted an audience of ages 12 to 34. However its self-conducted research showed that over 50% of its audience was 12–24, and that this group watched for an average of 30 minutes to two hours a day.[30] As the PBS series Frontline[31] explored, MTV was a driving force that catapulted music videos to a mainstream audience, turning music videos into an art form as well as a marketing machine that became beneficial to artists."[32]