Well i recently purchased Apple TV and i have a question. One of the main reasons why i purchased apple tv was to be able to play my playlist from my macbook through my home theater system in my house. I used to run a cord from my reciever to my mac but obviously that was kind of a pain running a cord across my living room. So my only question now is, does my macbook have to be on and opened in order to play my playlist on my tv? can i still surf the web and have my playlist playing on my tv?