Looks like that did the trick!
After the factory default reset and re-config I removed power from the box for a minute and then powered it back up with the TV off. Let it boot with the TV off for a few minutes and then turned the TV on and it was correctly set at 720p. Sweet!
Looks like the box had remembered the 480i setting from the SDTV it was initially paired with and the only way to clear it was via the factory default reset.
Will know for sure tomorrow after the overnight reboot.
how didyou do it
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