It took over TRM's transmitter network, with 99 repeater stations serving 72% of the population.
[2] 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.
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.
From 1990 to 1993, Imevisión consolidated the programming of the channel 7 and 13 networks; this ended when both were privatized and Televisión Azteca was formed.
In 2007, TV Azteca began testing its HD channel, but with different programming to analog.