A:AnswerNot sure how the Sonos playbar connects but tv does have analogue and optical audio out, airplay and built in chromecast. If theres a sonos app to connect through wifi to tv that also should work. As you have full access to Android play store. The wifi works great and I stream through Plex and VLC from my media server.
A:AnswerI am sorry, I do not have that specification. You can try the LG Community Forum; it is a great resource for getting help from other LG customers: https://lgcommunity.us.com. ^Daphane
A:AnswerNot sure how many channels you'll get if its not a digital antennal. On my with a rather cheap digital antenna just placed in window behind tv I get about 25 channel over air.
A:AnswerI think you may need to change a setting for the cable connection from antenna to cable. otherwise it's going to scan for and channels over the air like if had antenna connected. Not 100% positive on this but I do believe remembering it ask me if I had antenna or cable provider connected upon 1st set up.
A:AnswerPretty sure its atleast a 1 amp port. Could be more. Not home atm to look at mine and see. Should be listed under the specs page from the manufactors website.
A:AnswerIf you still use cable to watch tv you will need to continue to use your coaxial cable. You may be able to talk to your cable company and get a box which will allow you to use a HDMI cable instead. The sound is good for a tv but if your looking for better sound you can add a sound bar with a sub fairly affordably or you can hook up your headphones as well.
A:AnswerAs long as you use the hdmi port that says ARC next the yes when you turn cable box on the tv will also automatically come on and should be able to set cable remote to control the volume also.