Bias lighting is used for calming and relaxing effects. Though it is not an office desk lighting solution, yet offers a pleasant feeling while watching your TV without much eye strain. Also, it reduces your viewing fatigue, especially while viewing an LED TV (or LED-backlit computer), because the contrast between the room and the screen is dramatic. So, you can reduce this effect by adding bias lighting to your TV and thereby enjoy watching the screen, even for a longer time.