Mexico has adopted the NTSC and ATSC television transmission standards without any alterations. However, some unique local variations exist for DTH television due to transponder design variation in the Anik series of satellites.
All of the networks listed below operate a number of terrestrial TV stations. In addition, several of these networks are also aired on cable and satellite services.
Four television networks in Mexico have more than 75% national coverage and are thus required to be carried by all cable providers and offered at no cost by the broadcaster. A fifth will also have this once fully built out:
There are also several other significant national networks, which in some cases have coverage primarily provided by subchannels:
Of the many noncommercial services, there are only two national networks of retransmitters:
The digital SPR retransmitters offer Canal Once along with these important noncommercial television services:
One independent regional network operates in Mexico:
Mexico also has government-run state television networks in 26 of its 32 federal units:
General:
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