Advanced TV Will Be a Test Of Sony Revival.

Reports that Sony Corp. plans to roll out in the United States a line of rear-projection televisions based on a light-reflecting semiconductor chip. Similarities between these TVs and the high-end flat-panel TVs; Price of the new TVs, which are based on the technology called liquid crystal on silicon, or LCOS; Speculation about the competition in market for big TVs if the LCOS television is accepted in the U.S. market; Expected increase in the number of big TVs shipped to North America; Recent financial performance of Sony, noting that profits are sagging at its electronics division; Legacy of technological innovations at Sony, the company that invented the Trinitron TV and the Walkman.