XHIMT came to air on May 15, 1985, as part of Imevisión's relaunch of the Televisión de la República Mexicana network into a full-fledged national network comparable to its existing Canal 13 network.
The insertion of a channel 7 into Mexico City required a shuffle of frequencies in neighboring areas, with stations in Mexico City, Toluca and on Altzomoni moving to accommodate the last VHF station in the nation's capital.