I thought the same thing years ago: I didn't want the screen staring at me all day when I'd only watch it for small periods of time.
Unfortunately, only "older" TV furniture had retractable doors to cover it, not much was available for large flat screens.
- Buy/make some nice (red) movie theater style curtains to cover the screen when not in use
- Get a large canvas print of your favorite art and install that on the retractable pull-down screen
- Go all out and build a motorized system to raise/lower the TV into/out of the attic/basement