This is a blatant lie TV and better cable (god I lol'd so much at that) don't make for better graphics a better graphics card does how ever.
By any chance these high end gaming rigs you talk of where still using good old CRT monitors and/or running at resolutions below 1920*1080 they are the only reasons it would look worse than a PS3 or some really sub par graphics card.
I know lets all go out and buy shine new cables and make our in game graphics better lol I mean come on.
And you can't do this on a PS3 so nuff said lol.
I mean come on people everyone will all have a preference and it is not wrong or right to dictate to people what they should play on but hands down any mid level (cheap) gaming machine will blow a PS3 out of the water.