It’s possible that your artwork appeared in a program even though you may have not given permission. In some cases this is allowed under copyright law.
In Australia, the Copyright Act gives copyright owners the exclusive right to deal with their copyright material in certain ways. Generally, copyright is infringed when someone uses all, or a substantial part, of copyright material in a way that is exclusively reserved to the copyright owner, without the copyright owner’s permission.
However, there are exceptions and defences to copyright infringement, such as the fair dealing exception where copyright material can be used for the purpose of criticism or review, without the copyright owner’s permission.
If there are royalties available for your artwork in a program then, regardless of whether you gave permission for your artwork to appear in that program, you may be entitled to claim the royalties.