I wouldn’t be surprised if at some point, the first time you turn on your new TV, you’re prompted with an unskippable “Create your Vizio account” screen or some such nastiness.
Just like rooting/reinstalling your phone, it's important to set it up properly right after you buy it - no excuses of trying out their gimmicky crapware, figuring it out later, etc. This way, you're well within the return window and won't be stuck with defective merchandise.
Vanilla Android does not require any accounts, and Google Play Services allow to skip account setup. However, it could be that some vendors have mandatory account setup in their crapware.
