A:AnswerVizio TVs are great, but generally their sound isn't amazing. I would add a soundbar or even 5.1 system to make up for that. Its a fair compromise for a great, affordable TV.
A:AnswerYes. Download the SmartCast app on your phone and you can cast any of your common streaming services straight to the tv when it’s connected to your WiFi. The app is very user friendly.
A:AnswerNO! purchase a stereo RCA to female 1/8" or 1/4" (most are 1/8") stereo jack Y-cord adapter and plug a Bluetooth adapter into it. This Y-cord allows headphones and simple speakers to be connected as well.
A:AnswerMost wall mounts come with their own hardware.
This TV has 4 small screws in the back where the wall mount attaches but I don't really think they would be suitable for that purpose.