I have the 32" Sony Google TV, and a U-Verse cable box (Motorola VIP1200). I can not for the life of me figure out how to change channels using the Google TV remote. I currently am using the coaxial cable to connect the cable box to the tv. I can not find any IR codes to use the IR blaster. Would this work if I use the HDMI input instead of the coax? Any help or guidance would be appreciated!