With the video switcher unit ( Under the table ), you select the destination first, then the source.

Projecting from the Mac

1. Power on Mac, TV1, TV2 and Projector ( using a Remote Control )
2. Press Proj then Press Mac
3. Press TV1 then press Mac
4. Press TV2 then press Mac

Projecting from the PC

1. Power on Mac, TV1, TV2 and Projector ( using a Remote Control )
2. Press Proj then Press PC
3. Press TV1 then press PC
4. Press TV2 then press PC

 Projecting from a Laptop 

1. Power on Mac, TV1, TV2 and Prsnl
2. Press Proj then Press Prsnl
3. Press TV1 then press Prsnl
4. Press TV2 then press Prsnl

Trouble Shooting

1. Ensure that the input on TV1 & TV2 are set to HDMI
2. Ensure that the input on the Projector is set to HDMI 1