I like 2 and 4.

3 is ok, when you want to generally have a ligher style.

1 is to clean.

The Green Elements should have a brighter green (with some glow) when active -brighter in the center, as if there is a small lamp behind it-
and keep dark like this when inactive.
In the old demo, I let the TV Elements and Lamps flicker
a little bit from time to time.

Else its looking good.

maybe some litte red electric wires attached to the right side would look cool.

In the old GUI I also used a rotten woodbox, to attach items / the TV too. Or use some wire/tape/fabric to hold it fixed in place.

I would add a Geigercounter somewhere.
Could be one of the Elements that can be hidden in the options.
But I like the idea, that radiation is a constant thread.