I noticed this as well last night, however my reception problems (a random blackout of signal every 3-4 seconds while at over 80% signal) were also fixed at the same time, so I suspect they were having issues with it.
Didn't see any posts here on this, but it looks like the Rogers channels went to back-up power at some point.
City 57 has been mostly out for me over the past couple weeks, only occasionally locking in strong enough to pixelate, most of the time not locked in at all. It looks like both Omni's are operating weaker as well (I never stop on 40 or 47 so it's hard to gauge a difference), but everything else (from TO or elsewhere) seems to be fine.
Noticed the same thing over here, all CN tower channels in the repack band 38-51 suddenly became weaker on December 9. Rabbitears shows STAs for the Rogers channels but not for CIII: https://www.rabbitears.info/market.php?mktid=63, though CIII is clearly affected as well. I'm assuming it has to do with preparing for Phase 10 of the repack in May.
That's over the last hour (you can change the time duration in the drop-down box at the top and press "Go"). Click the callsigns to see the full signal graphs. Click the RabbitEars logo at the top and then click "Live Bandscans" to see the full list of participating tuners (green is active, red is inactive).
It could display 3-1 if there is no PSIP (or your TV fails to decode it for some reason), and it happens to be defined as Program 3 in the mux. If it was defined as Program 4 in the mux and had no PSIP it would display 4-1, so on. It's sister repeater in Font Hill shows up as 42-1, and is defined as Program 1 in the mux though.
The PSIP at FontHill is working though too.
Is it possible for CHCJ (RF-35) to have a display channel of 3.1?
Is it a cost/logistic issue?
, if you are asking why they don't purposely send the same virtual channel on the repeaters as the main signal, it's probably to avoid confusion in people's TV sets, so they are certain which signal it is that they are receiving.