So I was staying in a Marriott hotel and wanted to connect my Laptops HDMI out to the TV, Should be simple right…. Nope no obvious way to select the damn HDMI input.

Anyway after searching I came across

For Me pressing 0 worked, although I did manage to confuse their control box at one point causing the tv to stop working for a couple of minutes.

The other thing that apparently might work is to disconnect the cable from their control box to the TV (It’s the one that looks like a network connector) but if you do this don’t blame me if they come looking to see why their TV dropped off the system… Also don’t forget to plug it back in when done.