Add ability to display content of HDMI signal transmitted by Roku device

It would be very helpful to be able to display the content/format of the HDMI signal transmitted by the Roku device.  For example,  4K 60FPS Dolby Vision Dolby Atmos, or 1080P Dobly Digital +.  Home theater receivers and some Sound Bars display this for content being played or passed through.  It is very helpful in determining if the AV equipment is connected and configured correctly.