Proctor's Theatre is a former vaudeville house located in Schenectady, New York, United States. Many famous artists have performed there, notably Mariah Carey, Britney Spears, Hal Holbrook, Ted Wiles, and George Burns, as well as many others. It has one of the largest movie screens in the Northeast. The theatre was opened on December 27, 1926. It was designed by architect Thomas Lamb. Four years later it hosted the first public demonstration of television.