Is this the biggest HT system ever?


Check this out...

http://blog.audiovideointeriors.com/208great/
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As far as cabling...it looks like the photo is an "in progress" photo taken after placemnt of equipment and before final hook-up. I'm still impressed, but I still want to know about the HVAC system to keep the viewer comfortable.
Looks like all the cables were removed for the photos.

All of that for an audience of 3 (Mr. & Mrs. K and thier dog)?