I'm pretty sure this is a problem caused by Cablevision. This actually happened a few months ago when Cablevision changed Channel 62 to HD which was originally was SD. I don't see the point of that because there is already another HD TWC channel which is Channel 762. I use a HD cable box, and before this happened, I was still able to get a SD Feed from TWC. Is it possible to fix this and how? Thanks.