Audio Advice Needed (PS3 Related)

Boosted Supra

AEM 7MGTE 6765
Apr 7, 2005
353
0
16
44
Valley Stream, New York, United States
Just purchased an Insignia NS-R5101 w/ HDMI Receiver. I want to know how to get optimal settings with my current setup:

PS3 BD audio set to "Liner PCM" (HDMI)
TV set to Liner PCM
HDMI from PS3 to RCVR HDMI "IN", and RCVR HDMI "OUT" to TV HDMI "IN"
Optical cable from RCVR to TV

RCVR only seems to display Dolby Digital, can't seem to get DTS to come on. Am I doing something wrong? Please explain, thanks.