XHIMT-TDT is the over the air Azteca 7 (also known as El 7) network flagship station in Mexico City (Channel 7 virtual and Channel 24 digital). XHIMT provides some HD programming to cable and satellite viewers.
The station's digital channel is multiplexed:
To bring a channel 7 to Mexico City, which had channels 2, 4, 5, 8, 11 and 13, a channel shuffle had to be made. This channel shuffle converted Televisa's station XHTM-TV channel 8 to channel 9. Two Puebla stations, XEX-TV channel 7 and XEQ-TV channel 9, moved to channels 8 and 10; XEQ took on the XHTM callsign that was discontinued in Mexico City. In Toluca, channel 7 (XHGEM-TV) was moved to channel 12, and XHTOL-TV moved from channel 9 to 10. XHIMT-TV took to the air on May 15, 1985, as the third of three Mexico City stations operated by public broadcaster Imevisión, sister to XHDF-TV channel 13 and XEIMT-TV channel 22, and the flagship station of a second Imevisión national network which featured 99 repeater stations serving 72% of the population. The new Red Nacional 7 (7 National Network) was positioned as targeting the working class and rural areas, while Red Nacional 13, based from XHDF, targeted a more middle- and upper-class audience.