This problem started in version 0.66. Audio in some TS files with a Dolby E track (broadcast lossless audio format) is not detected. Only MPEG audio and other common formats show up under the audio track selection tab.
I am using Media Player Classic 1.7.9. If I go back to LAV version 0.65, the audio track is detected and I can bitstream it to an external decoder perfectly.

This is a TS file with this problem: https://drive.google.com/folderview?id=0B09XfeCqRrZbYjlWTUQzUzZjd3c&usp=sharing
And this are 2 TS files with working Dolby E audio: https://drive.google.com/folderview?id=0B09XfeCqRrZbY0JyNnVhQkFTczg&usp=sharing