Ditto with my 659. Delete it and add it again. Then, try all its dataset commands in device mode. Its dataset has many commands including the 2 discrete power commands (PowerOn, PowerOff), and many discrete input commands. Teach it only missing commands.

Note 1: You TV has both an analog and digital tuner. The discrete "InputTv" command probably selects the analog tuner, and the discrete "InputDtt" command probably selects the digital tuner. Try them in device mode. If they work properly, then reconfigure its Adjust Input settings (Method 2) to add the missing digital tuner input and associated discrete command.

Note 2: If the 2 discrete power commands work properly, then reconfigure its Adjust Power settings accordingly (by selecting option "A different button for each").