Watched it already and really enjoyed it. IDs from as far as Toronto, Minneapolis, and Buffalo seen in these Super 8 clips. Several test patterns, and yes, as mentioned, MPATI on either channel 72 or channel 76, but both shown with the next educational program to air. In the '60s, Midwest teachers often rolled out the B&W TVs into the classrooms and tuned to the snowy MPATI channels for an educational program. This was at the same time they had the projectors and films available, but long before consumer VCRs (and VHS libraries). And it helped for those who were quite distant from an NET station.