Hola, lo de que se ve mal parece que tiene que ver con el 4:4:4 Chroma, según veo en una review lo soporta con "60hz signal and “PC” input label".
Pero según leo en hilo del 4:4:4, el problema que tienes sería por usar el cable hdmi-dvi según lo que pone y la solución que dan:

T3) I’m using a DVI->HDMI cable, but I’m still failing 4:4:4, what’s going on?

Unfortunately, I don’t have a technical explanation why this happens to some people. The popular theory is that during the EDID exchange between video card and TV, the HDMI audio extensions becomes enabled over DVI. When HDMI audio extensions are enabled, *something* causes 4:4:4 to fail. I have no idea if this is a TV issue, or a video card issue, or a HDMI issue, or an EDID specification issue, or a combination.

The good news though, there is a fix that has a high success of getting 4:4:4 working again over a DVI->HDMI connection. This fix is commonly known as the EDID Override fix or the Disable HDMI Audio fix, which will be described in [the next question].

T4) What is the EDID Override fix? -OR- What is the Disable HDMI Audio fix?

The EDID Override fix (a.k.a., Disable HDMI Audio fix) disables the HDMI audio extensions after the initial EDID exchange takes place. I don’t know the technical details on why this fix works, it just does.

So how do you install the EDID Override fix? The Internet is littered with mini- How To’s, but the two that I’ve found to be the easiest to understand (even for those not technically savvy) are:

currysauce.org
forums.nvidia.com

Note1: Both walkthroughs achieve the same result, they just have different approaches. So go with whichever one you think easier. I personally prefer the currysauce way.

Note2: Both walkthroughs are written for nvidia video cards, but it’s the same for amd/ati video cards too.
Para saber si esta activado el 4:4:4, ponen alguna imagen de prueba.


Yo estaba mirando también esas dos tvs para monitor de pc, y tengo algunas dudas, en la review del f5000 pone que tiene algo de judder con 24p, ¿lo has notado?.
Y de lo del 4:4:4, pone que va a 60hz, no pone que sea a 24hz o menos de 60, sería interesante y te lo agradecería si probaras el que lo soporte a 24hz o 50hz.
También la usaría para juegos, ¿anda bien de respuesta?, ¿se nota alguna estela?.

Saludos.