Abstract: A device for directly indicating the programs being reproduced from a particular track of a magnetic tape located within a tape cartridge. The tape cartridge includes an opening in the front of the cartridge with a four-sided program indicator shaft adjacent to the opening and containing indicia indicative of the particular programs being played on a particular track. A drive shaft along one side of the cartridge engages the program indicator shaft, with the drive shaft in turn being engaged through an aperture in the cartridge by a push shaft mounted within a magnetic tape reproduction apparatus. The push shaft is actuated by an appropriate solenoid means in electrical parallel with program indicator lights in the magnetic tape reproduction apparatus such that a change of channel being reproduced from the magnetic tape will cause extension of the push shaft and consequential rotation of the program indicator shaft to a new position indicating the programs currently being reproduced.