I have the youtube version of this tv, sony 40r552c. I guess almost the same lang ang picture quality with 352c.
I've set my expectations low for this tv but to my surprise picture quality is really good, colors are life-like (of course it depends on your source pa din) and most importantly black level is almost comparable to my samsung plasma. my kids really enjoyed watching youtube on this tv, nabawasan pag gamit nila ng tablets & laptop hehe.
yes, it played .mkv (w/ DTS audio) and almost all video formats. pansin ko lang, yung old HDD drive ko (USB 2.0) eh hindi kayang basahin ng tv. pero yung newer HDD ko eh walang problem.
I bought mine last November pa, with so much haggling nakuha ko ng 20,700 pesos (SRP that time is 24k) sa Abenson metro east.