Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sound Problems from Collections 2-5

I am the world's biggest Twighlight Zone fan. Therefore, when the opportunity arrived to purchase all of the classic footage of this great series, I didn't hesitate. The problem that I'm having is that from Volume 13 on, which corresponds to the time Image Entertainment completely took over the DVD production, I am unable to play the sound from these DVD's through my TV or auxilliary speakers. The sound only comes through the speakers on the DVD itself. There weren't any sound difficulties with the first 12 Volumes. I don't believe it's the DVD player either, (portable Panasonic LTV175). Has anyone else had this problem?