I have settled into a rather simple approach - I know what my preferences are for each input, I know pretty much where the different indicators are (Dolby Digital, Pro Logic II, PCM, DTS), and I can tell by whether or not the subwoofer's LFE indicator is on whether the source is 5.1 or 2.0. It's not as effective or precise as the way my old 950 worked (top right corner ID'ed the format), but it's gotten me by.