Blooloop has an article on the history of the video wall. It's worth a read. I first remember seeing this technology with the Who's Tommy.
Also on the site is an article about
As with the above resource, it is not specifically theatre related. While I always "knew" that there were many different types of entertainment that used either technical directors specifically, or an equivalently named position, I really didn't fully grasp how many different places utilize the same skill sets that TD's nurture. Just as every show is a little different, not every museum job or attraction, or event, or trade show is the same, but all of these jobs require similar skill sets. For instance, all require planning and organizational skills, knowledge of a wide variety of construction techniques, materials, estimating, communication skills among the many other skills TD's must utilize.