Original sentence: LCD projectors place a small LCD panel, almost always color, in front of a bright lamp, with the imagery on the LCD being provided by an attached computer or other video source such as a VCR, DVD, or a cable box.This technology is employed in some sizes of rear projection television consoles, as there are cost advantages when employed in mid size sets (40 to 50 inch diagonal).With a lens that "projects" the image on any flat surface and does not require and large "furniture" (like a big TV would), LCD projectors tend to be smaller and much more portable than older systems
Edited sentence: LCD projectors place a small LCD panel, almost always color, in front of the bright lamp used in all overhead systems, with the imagery on the LCD being provided by an attached computer.This technology is expected to be employed in some sizes of rear projection television consoles in the near future, as there are cost advantages when employed in mid size sets (40 to 50 inch diagonal).With no need to physically move the images in and out of the machine, LCD projectors tend to be smaller and much more portable than older systems