I have no clue what your TV does or doesn't do.
I can only say that if the box receives a 0x46 command (getDeviceName), it will respond with command 0x47 (setDeviceName). And that the TV in my office does receive it and show it.
If you want to know what Enigma sends back, start it in debug mode, both TX and RX commands are logged in the debug log.