A:Answerthe sound bar would operate independently of your receiver, as you would use regular speakers with that setup. as for TV, I have kept to Sony all these years, and you just need a HDMI connection for the TV and soundbar combo.
A:AnswerIf no arc input you need to be able to have inputs directly into soundbar to get Dolby Atmos. You will get just stereo sound if you don't. Also it depends on the level of the soundbar. 2.1. 3.1.1. 5.1.2. etc.
that determines the sound mix.