A:Answer By "accessing", I'm guessing you mean to see your media files, videos, etc. that are stored on your NAS. All NAS are different and there is a USB connection on the TV so verifying that will allow a direct access is a big unknown. However, for my NAS, I use a ROKU streaming device along with this TV; I added the app that both my NAS and Roku can add and it works fine with streaming and viewing. I'm unsure of apps that you can add using Smartcast to match your NAS, if you don't have a ROKU. My NAS is a QNAP model and works with several different apps.