What should I know about entertainment projectors?

I'll guess that the question is referring to a future purchase of a projector and make a few points to check before buying: 1 Does the projector support the resolution you want to watch? If you are looking for HD, then make sure it's a 1080 line NATIVE resolution. Many support 1080 signals but don't actually have 1080 lines - that means a loss of quality 2 Make sure the brightness is sufficient for the room where it will be used. The higher the light output, the brighter the room can be while you are watching. 3 Do some research on the reliability. Some manufacturers make more reliable kit than others and you probably don't want to be taking it back to the store 4 times each year. Does the manufacturer's warranty offer a replacement swap out or not? 4 Lamp life and lamp cost should be considered. Some projectors can be expensive to run, with high cost and short life lamps. 5 Most important - Does the picture look good when you see it? Use material that you will be viewing at home. If it doesn't look good to you, then the projector is no good for you. Remember that other people's opinions on the image quality are no substitute for your own eyes.