 On August 14, 2018, it was announced that CHEX-TV-2's affiliation agreement with CTV would expire on August 27; the station subsequently became a Global owned-and-operated station known as Global Durham as of September 6.Although operating as a separate station from Peterborough sister station CHEX-DT, it retains the CHEX-DT-2 callsign used when the station operated as a rebroadcaster of CHEX.Oshawa, although larger in population than Peterborough, had not been granted a television station in the original channel assignments issued during the 1950s.