they are very easy to hook up plug in HDMI to your tv to the ATV if you are using wired ethernet plug that in and then plug the power cable in.
when it turns on if you chose th use wireless go to the last row and put in your wireless network lower on the list it should show home sharing turn that on. there should also be a spot for your apple id put that in also. thats should be it.
oh make sure you have homesharing on with your macbook