I have a Samsung TV LE32A336J1D and the colour in the picture has got some major issues; when I turn the TV on, the colour is ok, then approximately 5 minutes later the white and black colours become inverted and the brightness is alsmost transparent.
I emailed the CEO of Samsung and the response I received was "Pay for it to get fixed" which is pretty disgusting considering the amount of money I pay on Samsung products.
I have noticed around several forums that people are suggesting to update firmware (on Smart TVs) or to reset the TV by holding Exit. As I don't have a Smart TV these options don't work, however, if anyone has a workaround or any ideas how to stop this from happening, please do share!
I have tested the picture on a DVD player, Xbox console, and changed the HDMI cables - it's defintely an issue with the TV.