The DTT project was revived in 2016 with the construction of a multi-purpose 100 m transmitter in Çanakkale, designed to look like a ribbon. Test broadcasts are expected at end of 2020, before an official DTT launch in 2021. On December 14, 2011, national public broadcaster ZNS-TV announced it would be upgrading to ATSC digital television with mobile DTV capabilities, in line with its neighbours, the United States and Puerto Rico. Bermuda has plans to convert its three broadcast stations to ATSC digital terrestrial television in the future. In Canada, analogue switch-off was mandated by regulatory authorities for all provincial capital cities and all multi-station markets. Analogue would continue in single-station markets and remote areas. With an exception, analogue switch-off in the mandated areas took place on 31 August 2011. The CBC was granted an exception in many smaller multi-station markets, due to the cost of conversion, otherwise the CBC services would have gone dark in many such markets. Most network stations are already broadcasting high-definition digital signals in Toronto, Ottawa, Montreal, Calgary, Edmonton, Winnipeg, Regina, and Vancouver. Most networks had been concerned about the August 2011 deadline as not all parts of the country were equipped to receive DTTV by the scheduled date. In Mexico, the digital transition is completed. Digital signals are available in all cities, thus providing national coverage. Analog transmission were turned off based on population size. Tijuana was the first city to turn off analog signals and the nationwide turn off was completed on December 31, 2015. On October 27, 2016, Mexico relocated all of its channels. This made Azteca 13 (now Azteca Uno) on virtual channel 1.1 nationwide, Canal de Las Estrellas (now Las Estrellas) on virtual channel 2.1 and Imagen Television on virtual channel 3.1. Border cities were not affected due signal issues across the United States. For example, in the Tijuana-San Diego area, channel 2.1's signal comes from KCBS-TV, a CBS owned-and-operated station in Los Angeles, and can affect television users in portions of San Diego County. Thus, Las Estrellas is on virtual channel 57.1. In the United States on 12 June 2009, all full-power U.S. television broadcasts became exclusively digital, under the Digital Television and Public Safety Act of 2005. Furthermore, since 1 March 2007, new television sets that receive signals over the air, including pocket-sized portable televisions, include ATSC digital tuners for digital broadcasts.