A:AnswerThey are closer to the center than the outside edges . Imagine half of 65” . So dead center of the tv go to the left 8 inches and to the right of dead center 8 inches is where it’s out .
A:AnswerThis television does not use the Roku platform it uses the VIZIO SmartCast interface. This television also has a built in Amazon Prime video application built in.
A:AnswerYou have several ways to enjoy sound on this Vizio model. (1.) You can listen through the built-in speakers (Worst Option) (2.) You can install a surround sound receiver and speakers through the RCA jacks (Better Option) (3.) You can purchase a sound bar like I did "VIZIO - 2.1-Channel Soundbar System with 5-1/4" Wireless Subwoofer and Digital Amplifier - Black/Silver" from best buy! The audio is off the hook and easy to install. My wife is particular when it comes to sound while watching cable, Firestick or 4K movies and this made us both very happy! Here is the link on Best Buy:
https://www.bestbuy.com/site/vizio-2-1-channel-soundbar-system-with-5-1-4-wireless-subwoofer-and-digital-amplifier-black-silver/5767900.p?skuId=5767900
Enjoy!!!