MC3 and MTX3 controlling a samsung LED TV. TV toggles to Apple TV on HDMI 1 everytime without issue. When cable is selected TV toggles to Antenna, then HDMI 1 and proceeds to HDMI 2, however you have to select cable each time in order for the toggles to take place. Programming is set to HDMI2 and i set to fire the IR output for 4s to ensure it switches to it. Why won't the discrete inputs for HDMI 2 work?

Solution - changed module away from LED discrete codes to specific 7000 series TV