@MC_Shaw
Let me take a moment to thank you for posting on the HP Support Forums.
I understand that you have an HP all in one PC and would like to wirelessly mirror it to your smart TV and would like to know if it is possible. I'd like to assist you with this case.
I did some research on this and found that if your PC has an Intel Wireless Display card (WiDi). This technology helps to stream music, movies, photos, videos and apps to a compatible HDTV. For addtional details you may refer to this link: http://hp.care/2ffFBX8
Hope this information helps. Feel free to le tme know if yo uhave any questions. Cheers! 🙂