The commander directed a final adjustment of the target settings, and then the picture switched to the two alien ships.

The screen became suddenly blank as the missile destroyed itself on impact, and the picture switched immediately to an airborne camera many miles away.

The picture switched back to the anchor.

The picture switched to that of just an empty circle.

The picture switched to a group of women and children parading outside the store with signs.

The picture switched to a cheap-looking commercial for a local car dealership.

The picture on the screen switched and then steadied.

The picture switched to an image of the docking facility.

I asked, as the picture switched to the nightly reports on the illegitimate-birth catastrophe and the takeover of the whole world by savage crack dealers.

Alex punched his keyboard and the picture switched to a microscopic shot of the severed spine, the cut end tipped toward the camera.