This modest launch of 4K in South Korea has triggered speculation about whether it will be successful, or struggle like 3D. The difference between 3D and 4K is content. 3D content is limited to films produced in 3D. 4K can be sourced by any content originally shot on film, which is a lot of content. It is then dependent on a business model to convert and broadcast. It seemed HDTV would never catch on, but even though the dream of a single specification for HDTV never happened, HDTV is a reality albeit under multiple forms. It will be interesting to see if content owners enthusiastically embrace this format and get their conversion farms rolling to supply content to the hungry TV manufacturers that want it to succeed.