One of my good friends has an office a few miles down here and wanted me to help him with his A/V equipment. I did a bit of searching and realized that the problem was that he needed HDMI switches for both of his projectors. The projectors only had one HDMI input and he had a few things that had a HDMI output.  With a little rigging and adding the HDMI switch, he is back up and good to go.