It's interesting that so many folks have lost their HD channels. I do have a X1 Box, an Insignia Roku TV, and my own cable modem and wireless router. When initially available, the HD channels were unusable. Usually after a minute the sound would be so out of synch with the show, I just started watching SD.
After the update, I did see the new option (HD preferred) and found that if I tuned into a SD channel, the HD channel kicked in, i.e. no more having to tune to a 4xx station, I just use the lower numbers. Synch is completely fixed now and the picture is as good as it is on the x1 box. Didn't even check to see if I could bring up the higher number channels in the guide. Why even try when I can use the lower numbers and get the HD version??
For me, the app is very usable now!
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