I got a brand new Sony Bravia HD set on Monday. When I initially installed it with a Optimum HD box, everything was great. The HD picture was coming thru on the regular (2-600) channels. Installed a Premiere XL with a M cableCard last night. Now the regular (2-600) channels look awful and I have to go to the 700's to get HD picture. Cablevision doesn't know what I'm talking about when I call them and insist that the HD programs now comes through on the regular channels. That seemed true for the box, but not for the card. Does this sound right to anyone? If it is, is there any way to fix it or am I stuck having to choose between easy HD channel access with a box or Tivo with a card with awful regular TV Channels?