Theoretically you could add a Wi-Fi card or USB Wi-Fi adapter and cast to the TV. I haven't had much luck with casting, but I have seen it work at least once. I just tried it with a USB Wi-Fi adapter I had sitting next to me and I couldn't get it to work after trying with probably a half a dozen different Roku devices. At best I could get a prompt on the TV screen to appear and Windows would say it was connected, but it would never actually display anything. It was a cheap adapter and I am having graphic card issues, so that might have something to do with it.
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