Thinking of purchasing a mag box to replace my zgemma star 2s, is there much difference between the 254, 322 and the 256, only want it to stream my iptv, is it just that the 256 is faster than the 322 which is faster than the 254, my internet speed is 250mb/s so no problems with that, just that my zgemma is blocky now and again...many thanks all...;)