A:AnswerAudio Return Channel. It allows you to use the same HDMI cable that connects to your receiver to send audio from the Tv apps or any HDMI device that is connected directly to the tv. You need ARC capable tv and receiver to do this. May have to be enabled as well. ARC is limited to stereo PCM or Dolby/DTS 5.1 compressed audio modes like optical.
A:AnswerYes, there is an internet browser. It's a little cumbersome to use since you're using the remote to "type" but it's pretty easy to get the hang of.
A:AnswerThe panel is 120hz and Samsung has a setting that they call 240hz. 120hz is the minimum to prevent the blur caused by 4:3 pulldown. Since it's divisible by 24 and 60, the picture looks great from any source. It has a quad core handling the upscalling from any source and its seemless. The billion colors makes any source look amazing. Great picture with no blur.
