This is the 2507th most frequent Turkish word.
medyaya
"To the media."
Here, 'medyaya' is used to indicate the direction of interest towards 'media' ('medya').
Medyaya olan ilgisi giderek artıyor.
Her interest in the media is steadily increasing.
In this sentence, 'medyaya' indicates the audience or the destination of the announcement to 'media' ('medya').
Yeni kampanyalarını medyaya duyurmayı planlıyorlar.
They are planning to announce their new campaigns to the media.
Here, 'medyaya' shows the object of trust, directed towards 'media' ('medya').