hi @Anonymous User
What is the model number of your Samsung TV?
If you have the NowTV app on your TV, then it will work with the TV remote, but not with a NowTV remote.
Or are you using a NowTV Stick with the TV, and trying to have the NowTV remote control the Samsung TV, which it can do (only) for On/Off and volume up/down?
If you can clarify what you are trying to do with what pieces of equipment, we can likely help further when we understand.