North London line then it was switched to . Later, it was cut back to . A tunnel, the Hampstead Heath tunnel, runs under Hampstead between and . The line is double track throughout, with a mix of triple and quadruple track between and . The former North Woolwich branch included a section of single track between Custom House and North Woolwich stations, and the Broad Street branch was at one time formed of quadruple track. During the February–May 2010 blockade, the , and stations were rebuilt to allow the extended East London line to serve Highbury & Islington on fully segregated tracks
Owned-and-operated television stations in the United States network chose to affiliate with Westinghouse's KYW-TV, Philadelphia's longtime NBC affiliate. After a bidding war, WCAU was sold to NBC. KYW became a CBS owned-and-operated station after Westinghouse's merger with CBS a few months later. As part of the same deal, NBC in turn transferred its own O&O stations in Denver (KCNC-TV, channel 4) and Salt Lake City (KUTV) to Westinghouse/CBS, and those stations became CBS O&Os after Westinghouse merged with CBS. NBC and CBS also swapped transmitting facilities in Miami between the then-weaker CBS-owned WCIX (channel 6, now WFOR-TV, channel 4) and the then-stronger NBC-owned WTVJ (channel 4, now