You can connect your pc via chromecast if your tv supports or just connect your cpu/laptop via hdmi cable or VGA cable i hope this helpsI know nothing about this stuff.
Is there a way/device to wifi out from my pc to a device that will connect to the tv via ethernet?
It is not feasible to run ethernet cable from the pc to tv.
If it connects to a network, it's what I mean as a smart tv... a tv with apps. There is no reason for Ethernet port unless it has some apps like Netflix, etc.It is VIZIO (not a smart TV). But it does have an ethernet port.
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