December 31, 1923, show WJZ aired 3,426 programs, including 723 talks, 67 church services, 205 bedtime stories and 21 sports events. Many of the broadcasts were musical and ranged from Carnegie Hall and Aeolian Hall recitals to harmonica and banjo solos. As part of the move to Aeolian Hall, WJZ's transmitting antenna was constructed atop the building, but the location in the middle of New York City proved to be a poor choice. At the end of 1925, the station began operations from a new transmitter site located at Bound Brook, New Jersey. WJZ did not operate regularly at 50,000 watts until 1935. Initial network operations Westinghouse and RCA's original financing plan envisioned that profits from receiver sales would provide the funds for broadcast station operations, but this revenue soon became insufficient. In 1922, AT&T adopted a more practical approach, of selling airtime, which it called "toll broadcasting", in addition to connecting stations together using telephone lines to form a radio network that could broadcast programs simultaneously to multiple sites. This first radio network was called the "WEAF chain", named after the flagship AT&T station (later WNBC), located in New York City. RCA, along with its "radio group" allies of Westinghouse and General Electric, responded by creating a small network of its own, centered on WJZ. Due to AT&T's interpretation of a patent-rights cross-licensing agreement, the telephone company claimed the sole right to sell airtime, so WJZ was not able to charge for advertising, and again there were technical limitations, since the network had to use inferior telegraph lines to interconnect its stations. NBC-Blue network flagship years In the summer of 1926, AT&T decided to withdraw from the broadcasting field, and sold its stations and network operations to RCA. Included with this sale was the right to sell advertising time, and access to telephone lines for radio network connections. The earlier network operations were reorganized as the National Broadcasting Company (NBC), with the primary network, now known as the NBC Red Network, originating from WEAF. A second network, known as the NBC Blue Network, with WJZ as the originating station, debuted on January 1, 1927. (The WJY sister station was quietly discontinued at this time.) In October 1927, WJZ moved into NBC studios still under construction at 711 Fifth Avenue. A month later, WEAF joined WJZ, and both were together under one roof. On November 11, 1928, as part of