Trying to enjoy your favourite programs in SD instead of HD is a major struggle! We definitely want to help you get this issue resolved.
From what you've described it sounds like there could be an issue with one of your TVs. Is that TV an older model than the other one which seems to work fine? We may need to escalate a Ticket on our end to investigate.
@RogersTony: As you probably remember, when the Navigatr firmware came out with the "Auto" setting in the "Settings - Appearance" section, some people with older TVs had issues wherein they couldn't even get an image due to a (bad) HDMI handshake forcing a "format" (say 1080P) that some TVs (768P) couldn't receive. This was resolved with the option to select whatever format you want under Appearance.
The posters in this thread have tried that, but the format doesn't "stick", reverting to 480P when they turn off the STB. Also, it appears that the 4642 then thinks that it's an 8600 and not a 4642, which is really weird.
@squirrelqueen : I assume you meant component video (the three video cables (red, blue, green)), plus analogue audio. Composite video (yellow) would be 480i, SD.
One option I mentioned earlier would be to select 1080i (or whatever HD option under Settings/Appearance) that works and then leave the STB on. It appears that the problem comes from the handshake at startup, so by not turning the STB off, there would be no startup issue? Have you tried that?
Yup, that's exactly what I'm saying. I did try this method of leaving the box on and only turning off the television, however when I turn the television back on I receive the same AUTO resolution message and the tv reverts to 480p with only the left-hand corner displaying. The problem is with the box. For now I will use the component cables as this is the only method that will stick to 1080i resolution.
I've just heard from my father-in-law who is also now reporting the same issue on his television.
This is a Rogers technical issue.
@squirrelqueen : I realize that this issue has come about with the latest Navigatr firmware update, but what I'm trying to do is find you (and others with the problem) a workaround until the firmware is fixed, which may take a while.
Would you mind checking to see if you have HDMI-CEC, or whatever it's called for your particular TV turned on in your TV user menu? If it's on, which it usually is by default, would you please turn it off. It may be called something different in your particular TV's menu, but the function is the same. See the following FAQ, point 4.