Please define "everything". Have you tried a different HDMI cable? Tried a different port in the TV? Verified the Switch on a different TV? Do you see anything at all on the screen when the Switch is powered on?
Dan Ultra (4640), Ultra (4670), Ultra (4800), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
I got it to work eventually, but I can’t remember how anymore. I’d suggest trying to update the TV & Switch, swapping your hdmi cable, and trying different hdmi holes on the tv. If you can, test other things in the tv hdmi hole and test the switch with hdmi on another monitor or tv. Best of luck!