gregg75 said:
On Dish and DirecTV the stations always match.....that's why we're not counting them.
I don't travel a lot, but it seems to be more in the South (for some reason or not)
that cable doesn't give stations the correct channel number.
I do travel a lot, and I don't think the phenomenon is limited to the south.
As others have pointed out upthread, the only real reason VHF stations were ever shifted from their RF channels in the first place was to avoid the "ingress" problems that stemmed from having powerful over-the-air transmitters close to residential areas, where the OTA signal could get into poorly-shielded cable systems and TVs and cause interference to the cable signal on the same channel.
There are certainly southern cities with transmitter locations that could cause ingress issues (Atlanta and Birmingham come to mind here) and others where the transmitters are far enough out of town to be less of an issue (Orlando, for instance). But I can think of plenty of cities in other parts of the country where ingress could be a problem as well - Rochester and Syracuse, for instance, or Boston's western suburbs, or Omaha. Out west, towers tend to be on mountaintops and ingress is usually less of an issue, but there are prominent exceptions even out there (Seattle and San Francisco come to mind.)
Here in Rochester, the suburban People's Cable system put 8, 10 and 13 on 8, 10 and 13 and battled ingress issues right up until the end of analog TV (and even now, I get some ingress issues from digital signals on 10 and 13 against analog cable 10 and 13.) The American Cable system in the city started out using modified Hamlin "slide-rule" converter boxes that did a crude form of remapping: when your pointer on the box was on "channel 8," it was really tuned to RF channel 7. So there was no "channel 2" on the system, and 8, 10 and 13 were really on RF 7, 9 and 12. The advent of cable-ready TV sets pretty much ended that scheme, and the system was eventually realigned to put 8, 10 and 13 on 8, 10 and 13.
I remember Syracuse's Newchannels system putting 3, 5 and 9 on 4, 6 and 7. Those got moved eventually, if memory serves.
In Boston, the systems near the TV towers in Newton and Needham didn't make much use of the low VHF channels at all; 2, 4, 5 and 7 ended up on 22, 24, 25 and 27 for many years.
The move to digital cable has largely eliminated ingress and channel-mapping issues. Here on my Time Warner system in Rochester, less than a mile from the Pinnacle Hill tower site, I can still punch up "8" or "10" or "13" on my digital cable box to watch the SD versions of "channel 8." But the QAM digital signal it's actually tuning in is on a completely different frequency (somewhere up on "cable channel 90" in the 700 MHz range), and even at that it wouldn't conflict with the RF channel 45 UHF digital signal that "channel 8" now uses.
(One more note here: in Canada, cable systems have long been REQUIRED to remap local VHF signals off their RF channels to avoid ingress. So Toronto's CTV affiliate, CFTO, for instance, has never been "channel 9" on cable there; it's been on cable 8 for decades.)