S430 TV "not available"?

Hi, my 1999 S430 has a Television facility/screen but it doesn't work. Does anyone know how I can connect it or what I need to do to get it to work?
 
Thanks, Mark. (Wales, UK).

I think that you need a TV tuner, because as i believe UK S-Class should already come with TV button available

Hi,
 
Thanks for that. It does actually have the TV button but it says not available and think it may just be some sort of connection needed somewhere?
 
Thanks, Mark.

You need a TV Tuner.  You should check with Steve at MLBenz.com as he is the best on this subject.
 
If you determine that you need a D2B TV Tuner, let me know.  I bought one for my 2000 S500 and used it for about 3 months and then left the company (had to give the car back).  I removed the unit but found out that it does not work in my new car (2004 S600) because the system is MOST.
 
The unit is like new and available.