RCA demonstrated the magnetic tape recording of both black-and-white and color television programs at its Princeton laboratories on December 1, 1953. The high-speed longitudinal tape system, called Simplex, in development since 1951, could record and play back only a few minutes of a television program. The color system used half-inch (1.3 cm) tape on 10½ inch reels to record five tracks, one each for red, blue, green, synchronization, and audio. The black-and-white system used quarter-inch (0.6 cm) tape also on 10½ inch reels with two tracks, one for video and one for audio. Both systems ran at 360 inches (9.1 m/30 feet) per second with 2,500 feet on a reel. RCA-owned NBC first used it on "The Jonathan Winters Show" on October 23, 1956 when a prerecorded song sequence by Dorothy Collins in color was included in the otherwise live television program.