How should I know the duration of my production and how often it has been broadcast?

How should I know the duration of my production and how often it has been broadcast?

Unfortunately, GVL does not hold this information either. This is because this info is, depending on the format, either not available at all or could only be obtained from commercial data providers at unjustifiably high costs. All details must therefore be submitted by the rights holders.

Please provide the necessary details on channels and frequency of transmission to the best of your knowledge and be as specific as possible if you no longer have any documentation in this regard. We know that in many cases the production dates back a long time and exact details cannot always be provided.