1. That depends on what audio out connections you have on your Samsung and other devices. But we can almost certainly get it working. 2. You don't have to have bluetooth, that's just 1 option. 3. Depending on which assistant and how you'd like to connect, you may be able too. 4. The dialog coming from this bar is very clear. Id also add that if you head to support.VIZIO.com and click on contact us- we have tech support agents who can get the specific of your device- and help you get all the features your asking about.