Just out of curiosity, before satellite made it feasible to have a separate Mountain Time Zone feed for the networks, how much consistency was there from market to market in network offerings? Stations in larger markets, with the resources to do so, could either run the East Coast feed two hours behind, or tape the evening's schedule and run it either an hour (to be in sync with Central Time Zone patterns) or two hours ahead, to emulate the East Coast schedule. Were smaller markets, that might not have had the budget or personnel to do that, pretty much "on their own"? Prime time from 5 to 9 pm would be kind of awkward, but I suppose if that's all local viewers knew, they'd get used to it.
In New Mexico, it depended on the market. I've been told that the ABC affiliates actually got their programming through Phoenix, and I have a childhood memory of slides on Albuquerque's KOAT indicating that its feed came through Tucson. (KOAT was also the only Albuquerque station that had a backup site that was on the West Mesa.) The NBC and CBS affiliates tape-delayed in the evenings but not for daytime programming. For example, KOB only carried the Today show from 7 to 8 am. Sometime around 1980, NBC set up a delay center in Denver at then-KOA-TV.
The situation in southeastern New Mexico was more complex. Roswell's channel 8 at first was a local NBC station which did not appear to have tape delay capability Later it was a repeater for a station in western Texas, in a different time zone. This was the case until Hubbard bought it and made it a repeater for KOB. Channel 10, also in Roswell, was local until Albuquerque's KGGM (or KRQE) bought it. Carlsbad's KAVE-TV, channel 6, started out as a CBS affiliate that got all its programming on film. Then it was able to get a microwave link to El Paso and pretty much followed the El Paso pattern, which was similar to Albuq
uerque. Ultimately, it became an ABC station repeating El Paso's KELP-TV. Then KOAT bought it, redubbing it KOCT, and eventually turned in the license in favor of translators. There went those wonderful call letters of KAVE, too.
When KIVA-TV (now KOBF) in Farmington, NM came on the air in the early 1970s, its TV Guide listings indicated that it tape-delayed almost everything from the NBC network, even more than what KOB did.
Albuquerque was also one of the last markets of any substantial size to get live network service: September 25, 1954, just in time for the World Series. KOB's first "live" network program was Saturday morning's "Canadian Pro Football", sponsored by Montgomery Ward! For KGGM, it was the Jackie Gleason show at 5 pm local time. The network relay came through Amarillo, 302 miles away.