Declining Your Adjectives

We're quite big on the declination of adjectives here.  But who needs a snootful of grammar on a Sunday?

This is the ZDF yearbook from 1963.  People of my age will probably recognise the old logo.

ZDF is probably a German equivalent to BBC 2.

Our BBC 1 is ARD which stands for (brace yourselves) "Arbeitsgemeinschaft der öffentlich-rechtlichen Rundfunkanstalten der Bundesrepublik Deutschland".

I wish you many happy hours of language-mangling (for my non-German readers).