said by FIB :
I have the same issue. HD of NBC is the first hit and then HD of CBS. THese are on 188 and 189. I wonder why just those and maybe 1 or 2 more in that channel range. Higher channels and lower channels are note affected.
the channels on your box do not correlate to channels/frequencies on the cable it self....your box maps them to specific tunable channels--
I'm better than you!