It is also sometimes referred to as the Eye Network, in reference to the company's trademark symbol, in use since 1951.[1] It has also been called the Tiffany Network, alluding to the perceived high quality of its programming during the tenure of William S. Paley.[2] It can also refer to some of CBS's first demonstrations of color television, which were held in the former Tiffany and Company Building in New York City in 1950.