Some panel engine suffers from the 24fps processing hence it's best you bring your 24fps materials to the showroom and try it out there. Dim the overhead lighting lowest possible to see the contrast of the unit when processing the 24fps type. Some will have poor contrast while some other will have artificial color reproduction. Try it before you buy because TV is usually a very long lifespan product hence you dont wanna stuck with a bad one for a while 

if you have a good graphics card, it might not be that bad compared to your player. sometime pc can support more format than the player. that why most ppl build htpc.

yea you need hdmi to connect your laptop to ur player to get the hd sound

The HDMI on your player is HDMI out. Not HDMI in so don't connect it to your PC. What you can do is do connect your PC HDMI out to TV and PC optical audio to the player.

I do prefer using the PC to play as I noticed with high def content, I tend to get audio drops once in a while when using USB on player.

should be possible, i saw from spec that your player do have optical in.

I don't have optical output on my PC so I've never tried it before. But my PC does allow me to select audio out between HDMI and normal 3.5mm jack. So I don't see why optical won't work. And based on the connections you have on your player, that's the only way you're going to get multi channel sound.

Do you have the link to the other thread?