Purchased LG 37LH50YR.  Does not play MKV file only SD DIVX. Purchase WDTV with HDMI connected.    Upgraded to latest firmware. Can play all M-HD MKVs and BDRIP MKV(11 GB) with no problem.   Only problem, sync problem with one HD music video with VORBIS audio.    For DTS, will need a DTS receiver with optical in. My 6 year old pioneer HTZ-303DV up to the task.   IMHO, side by side comparison, PQ better than Samsung or Sony equivalent model.   

200MHZ Trumotion along with 24P cinema mode works very well. Very lifelike and being there feeling. Just make sure that your WDTV is set to 1080p 24P

Now in the process of purchasing component connector for my WII and PS2. WII is o.k on the 37LH50YR but PS2 is really bad. As for Astro, I have a 6 year old decoder so stuck with composite connection. Upscaler for the decoder is expensive USD60.    Astro is 13 year old technology, so not meant for HDTV.    Hopefully, Astro can go HD soon.