See below.
show()Here are the class definitions so far:
class VideoTape
{
  String  title;    // name of the item
  int     length;   // number of minutes
  boolean avail;    // is the tape in the store?
  // constructor
  public VideoTape( String ttl, int lngth )
  {
    title = ttl; length = lngth; avail = true; 
  }
  public void show()
  {
    System.out.println( title + ", " + length + " min. available:" + avail );
  }
  
}
class MusicVideo extends VideoTape
{
  String artist;
  String category;
  
  // constructor
  public MusicVideo ( String ttl, int len, String art, String cat )
  {
    super( ttl, len );
    artist   = art;
    category = cat;
  }
  // The show() method will go here
}
Remember that the super reference (if it is used)
must be in the first statement of the constructor.
To finish the MusicVideo class, 
write a show() method for it.
Use a super reference to do the things
already done by the parent class.