LOL! I was worried there for a sec.
Regarding the dialog not being clear, there could be few causes,
1) Movie soundtrack did not lend itself well to being downmixed to 2.1
2) Sony's Sound Field setting did not work well with soundtrack
3) Soundbar processing circuitry works better with PCM signal
I would say, pick the movie that had unclear dialog and try different Sound Fields. You may find one that works better.
Last but not the least, try the PCM and Pass Through options to see which works better for more movies (across different sound field settings on the Sony) and keep that one. That makes for a lot of permutation combinations to test
.