just looked on the inside of my old remote black one, I have a new grey one now the one ones had a sticker inside to help tune it in.
It says:
1) Press 'tv' button
2) Hold down 'select' and 'red' together for 2 seconds
3) Led on top of remote should blink twice
4) Enter TV code (usually 4 digits)
5) LED should blink twice again
You find you TV code by looking in your tv instructions/manual or searching online for each tv maker they list a few numbers to try.
I have a toshiba an old one so my number is 0536
When you find the right code that works write it on the inside somewhere for future use.