Video CD a few years later) on each side. The Laserdisc provided picture quality nearly double that of VHS tape and analog audio quality far superior to VHS. Philips later teamed up with Sony to develop a new type of disc, the compact disc or CD. Introduced in 1982 in Japan (1983 in the U.S. and Europe), the CD is about in diameter, and is single-sided. The format was initially designed to store digitized sound and proved to be a success in the music industry. A few years later, Philips decided to give CDs the ability to produce video, just like its
WARP-CD on channel 20. The station, previously WARP-CA, began broadcasting a digital-only signal in late 2009. WARP-CA's call sign suffix (CA for Class A Low Power) was changed to WARP-CD (Class A Digital) automatically upon grant of WARP-CA's digital license in late 2009. WARP-CD currently broadcasts four channels of standard definition digital TV: 20.1, 20.2, 20.3 and 20.4. Longtime owner Randolph Weigner (who controls Sunshine Broadcasting Company) sold WARP, along with sister station WPHA-CD in Philadelphia, to LocusPoint Networks in November 2012. The deal made WARP a sister station to WSVT-LD, which LocusPoint acquired a month later. WARP-CD WARP-CD is a