Game streaming devices
If you're trying to wirelessly connect for PC gaming purposes, you should look into devices like the Steam Link. The Link allows you to stream video games from your PC to a TV wirelessly over Wi-Fi, or with an ethernet cable.
All you need to do is plug the Link into your TV, and connect it to the same internet network as your PC. Once you've done that, you can stream nearly any Steam game to your PC.
The NVIDIA Shield can do the same thing, and lets you play any PC game, even if they're not on Steam. But it comes with a hefty price tag — nearly $200 for the gaming edition.
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