The arrival of Ultra HD (Ultra High Definition) television, which took center stage at January’s Consumer Electronics Show, is poised to be the next big thing in home entertainment. With display resolutions of about 4,000 x 2,000 pixels on screens that reach some 84 inches, the larger-than-life viewing experience is one that consumers are already excited about.

But before people can start enjoying all that those screens have to offer, the video content distributors — the IPTV, cable and satellite …