On Thursday, September 15, 1960, at 10:00 p.m. in New York, CBS aired Jazz From Sixty-One on national TV. The half-hour show was broadcast from the network’s Studio 61, housed at the Monroe Theatre at 1456 First Avenue, at East 76th Street. The Monroe was one of the largest theaters built on Manhattan’s Upper East Side by an indie theater operator in the early 1920s…