After the FBI raid, LRH took off and if was radio silence from July until January 1978. However, plans were already in place to begin shooting technical training films. Sometime in 1977, LRH had mentioned to one of the key crew at WHQ, Stuart Moreau, that he had always wanted to make training films to show students how to do TRs and metering correctly. Stu said he would build him a film studio and, as far as I know, that was the genus of today’s tech films.
There was an old date packing plant on the property and Stuie and the Estates guys got onto renovating it into something that would serve as a film studio. It wasn’t large, maybe only 50 or 60 feet on a side with maybe 10 or 12 foot high ceilings and a couple of smaller rooms off against one of the walls, but it would do. Work on this continued throughout the rest of 1977 until LRH’s return.