TVs generally can't decode TrueHD or dts-HD - they simply downconvert to stereo internally. Though some may be able to pass this on to the receiver, it won't be the full blown decoded stream I suspect; it will be the "core" version. You won't really hear the benefits of these audio formats on TV speakers. If your receiver doesn't support the formats, try setting the player to pass as PCM instead of bitstream and see if you get sound from the receiver.