A:AnswerYes, this TV does have a web browser.
Unfortunately, you're very unlikely to find any smart TV that doesn't have a browser these days. You'll likely need to look at the specifications of every TV you come across as, if it states it has either wifi or a LAN cable connection, it's going to have a browser.
A:AnswerI Don't think so. You have to add Apple TV to your Samsung. That's just How Apple is. There may be a Apple receiver other than the Apple TV, like a dongle or something.
A:AnswerYes its same. pretty much. How fast can picture change from one frame to next in an action scene without blurring and washing out picture. I dont know whats fast enough... and if you don't know it probably don't matter for your application.