When my Vizio M70-F3 failed after 4.5 years, Vizio went on to my do not buy list, as that was my second Vizio that failed. I replaced it with a Sony Bravia XR75X90CL. The Sony is more expensive to buy, but I expect it to last longer, so the price per year could wind up less than Vizio.
In addition, the Sony initial setup asks if you just want to use it as a display, and bypasses all the network stuff.