I think i'm getting the right idea of the HDMI over ethernet, but would be good for someone to confirm my understanding.
Here's a diagram of an expected set up, is this how these things are typically set up?
Assumptions:
1) Pretty much any graphics card (as long as it displays 1080p) will manage here, as the HDMI splitter amplifies the signal?
2) Assuming you can get a splitter that supports multiple inputs, i'm guessing that whatever source is fed to the output will be the same for all ports?
3) The "Neet HDMI extenders" i've looked at have an IR option, i'm guessing that this would somehow allow the input source to be swapped? Following the behaviour from Q2, this would then swap the feed for all TV's - which then makes having multiple extenders with IR capabilities a bit pointless?
Here's a diagram of an expected set up, is this how these things are typically set up?

Assumptions:
1) Pretty much any graphics card (as long as it displays 1080p) will manage here, as the HDMI splitter amplifies the signal?
2) Assuming you can get a splitter that supports multiple inputs, i'm guessing that whatever source is fed to the output will be the same for all ports?
3) The "Neet HDMI extenders" i've looked at have an IR option, i'm guessing that this would somehow allow the input source to be swapped? Following the behaviour from Q2, this would then swap the feed for all TV's - which then makes having multiple extenders with IR capabilities a bit pointless?