My model has the nighttime feature as well as an adaptive DSR mode which adds extra oomph to the center channel for voices in movies and stuff.

I got to thinking. Since the TV is outputting an ARC channel anyways which limits the bandwidth, it makes more sense to pass it through as a PCM signal for games, then only change to Bitstream for movies. Less hassle that way anyways. Then leave the receiver in Dolby to post process the signal later.

I don't know. This stuff is confusing.