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 is now held by WNLO and the channel 17 frequency is now held by WBXZ-LP; WNED still holds the virtual channel 17 in the Buffalo market, but has not advertised it since the early 2000s). Similarly, CBS bought UHF stations WGTH-TV (channel 18) in Hartford and WOKY-TV (channel 19, later on channel 18) in Milwaukee in 1955, and changed their call letters to WHCT-TV and WXIX-TV, respectively. However, CBS' ratings were astonishingly low in those markets. In 1959, CBS decided to move its Hartford and Milwaukee affiliations to VHF stations WTIC-TV and WITI-TV (channel 6) respectively, and sold off what