Different countries have differing video standards. The TV in the same country plays with gear from the same country. Mix it up and it may not work.
Didn't your call to Samsung reveal this issue?
Hello, i brought Samsung TV from USA and brought to Ghana, with the spec below
Model code : UN46ES8000FZA
Version no : TS01
S/N : Z4QW3CYD300656D
when i connect it to my HT F4550 home theater, the video cannot play and it tells me to change the resolution of the external device. The model number is HT F4550/ZN and the S/N is ZXYR1RBDCO1196F.
hope to hear from you soon