Lighting is very important in basement home theater. You can install adjustable lighting on dimmer switches. Position a few table lamps around the room so it can be used for multiple purposes. The last important thing when designing a basement home theater is you should also make sure the room has enough ventilation. Basements in particular can get stuffy. Luckily, if you have a popcorn machine, it will add heat to the room. You can use ceiling fans if the height is available. Use your whole-house fan if you have one, or simply place a couple of fans in the room.