Peak light output and contrast ratio determine a set’s ability to put out a bright image, with sufficient difference between the brightest and darkest images to create a realistic picture. Choosing a TV based on quoted specs is tricky, since test methods vary and are impossible for you to confirm accurately. Let your eyes be your guide instead, and judge overall picture quality instead of obsessing over the various sets’ individual specifications.

A number of flat-panel sets lack broadcast TV (NTSC or National Television System Committee) tuners, let alone over-the-air digital tuners, while other sets are more fully equipped. If you have an external HDTV tuner box that has an analog TV tuner as well, you probably don’t need another tuner in the display.