The antennas moving like this are an interesting idea. But the images are too compressed : you can see the pixels on the unit itself... Size matters but the unit itself must be identical so only the screen changes when the user mouseovers.
This contest is for one image, 20$. Nothing changes and I'm really happy with the results so far. But let me know if you would be available for, let's say, 20 of those images (I pick the movies and maybe the screens) for 100$. That would be a perfect package deal for me.
I'd say : stay with Mars Attack / Star Wars, but try to make the best animation under 100Kb. No colors required if it can help lower the size! Also, the animation can be compressed a lot, it can still look cool because it makes it look "old". But the television unit itself should not be compressed. I really like this one, but it's too big and the background not transparent : Thanks.
The background of your images is not perfect though, you can see white pixels (check the right antenna). The images of the other designers are ok in that regard. :