Don't know if this is the correct forum or not, but here goes. I have a Roamio and a DIrect tv TIVO (their newest one), both are set to display full. My Roamio's out put fills the screen while the DTV one looks to be using letter box even though it is set to full. I just installed a new TV and both HDMI cables are new. Anyone know what's going on? How to fix it?