Hidden OTA antenna channel info screen?

Hi, is there any sort of Hidden channel info screen, that can bring up signal and C/N listings for a particular OTA tv channel? I know of the hidden diags menu though HELP that you can go into separately, just wondered if there's also some way to do certain key pushes on the remote to get that info right while watching a channel.

By the way, I also just noticed that with the latest firmware version 20.7.4d.RC15-846-6-846, that on OTA channels, it's finally showing Signal Strength & SNR's above 72% and 29 snr. Previously, it wasn't possible to ever see levels higher than those two.