Here in Connecticut COX does not carry the HD feeds of the following channels/networks:
18 WUVN Univision. Since they only carry the SD feed Channel 18.3 UniMas appears on 19.3 without a box instead of 18.3 and is 79 with a box.
QVC-HD
HSN-HD.
HLN-HD.
Plus if you don't have a box you don't get ION in HD. If you have a box ION-HD (WHPX/26) is 1010. COX also does not carry any of ION's subchannels either, but then again neither does COMCAST.
There are probably some others that I'm forgetting, but here are 4 for now.
18 WUVN Univision. Since they only carry the SD feed Channel 18.3 UniMas appears on 19.3 without a box instead of 18.3 and is 79 with a box.
QVC-HD
HSN-HD.
HLN-HD.
Plus if you don't have a box you don't get ION in HD. If you have a box ION-HD (WHPX/26) is 1010. COX also does not carry any of ION's subchannels either, but then again neither does COMCAST.
There are probably some others that I'm forgetting, but here are 4 for now.