Some HDTVs are equipped with SONYs and RCAs, two of the most popular brands in the television industry. SONYs is a five-letter word that stands for Sony Corporation, a Japanese multinational conglomerate corporation specializing in electronics, gaming, entertainment, and financial services. RCAS is a four-letter acronym for Radio Corporation of America, an American mass media company founded in 1919 that is now a subsidiary of Sony Corporation. Both SONYs and RCAS are known for their high-quality HDTVs, which offer superior picture quality and sound.