I got an E series Vizio recently. I wanted to stay with a 1080 screen for now since my main viewing is DISH. I liked having the included tuner for weather issues also, but I can get important info on the internet in case the OTA signal goes (I don't have the greatest signal even with an antenna with amp).
It did take a bit of learning to get the TV and my Vizio soundbar set up on the app, but I was able to do it. On my iphone, it uses bluetooth and/or wireless to set up, but I "cast" things to the Vizio devices which are connected with wired ethernet out of choice. I pick say a youtube video on my laptop or maybe something from TuneIn radio on my iphone and send it to the tv/soundbar.
I like how it works. If there is a setup problem, I bet Vizio can help. I contacted support after I had set up the devices to get an answer to a question, but I was able to work my way through the setup by myself.