Switch through your TV inputs. If it displays "nijedan" (none), check if the external box (cable/satellite) is powered on.
In some coding scenarios (like C formatting), hd is a length modifier for a short int . : printf("%hd", variable); HD nijedan
Since "nijedan" is a strong negation, "HD nijedan" can be a play on words about "Absolute Zero" or "Pure Void." : The Philosophy of "Nothing" in High Definition. Switch through your TV inputs