Here is how:

1- Press TV button on your dream remote
2- Press on SHIFT/Set-up button for 3 seconds and TV button will blink twice
3- Enter the suitable code that match your TV
4- When u finish the remote will be ready to use for both Dreambox and the Tv

If u want to use the remote for the Dreambox just press the Dream button and to use it for Tv press the Tv button.

Here are the codes :
https://www.dream-multimedia-tv.de/d...TV%20codes.pdf