You will have no problem using the V6 box on this TV - However, it will only display HD at 720P. 'Full HD' resolution is 1080p. But this will not stop the V6 box from displaying a perfectly clear, crisp picture (viewing HD broadcasts). I would suggest upgrading to a higher resolution TV to get the most from the HD channels, but this is completely your decision, and is NOT essential.
I hope this helps,
regards,
K.