Camera blocks currently have a "viewscreen" texture on the back (opposite side of the actual camera texture) that approximates what you see when in flight mode. I'd like to see the texture actually show in low resolution what the camera is seeing. Then it would be neat if you could combine a whole wall of camera blocks as a group, and pick one as the "output" like you can with a weapon group. Then the whole wall of camera viewscreens would appear as a single viewscreen, showing the output of a single selected camera. It would be best if you could select unattached cameras as part of the "big-screen tv" camera group, so that the single large viewscreen in one part of your structure could view the output of that one remote camera. And while I'm thinking pie-in-the-sky: Maybe be able to link the viewscreen to multiple outputs, so you can somehow select your output in a way similar to how you pick which cockpit/camera you are looking through in flight mode now. Then you could select the output of different cameras on the same screen.
It may seem wasteful to have more than one block able to show full-motion viewscreen, but I think it would be a great way to keep from being locked to a specific block type for such a utility, similiar to how we have multiple decoration-only computers. Plus, it would be an easy way to create multiple adjacent viewscreens. The video output would need to be server-configurable, and probably set to False by default, to keep lesser game servers from lagging heavily under the load of re-creating the camera output in low-resolution in real-time to the texture of the same block.