You'll have to use a Google Chromecast I use the third gen but if you want more of a smart TV like experience you may want to get the Google tv Chromecast. As long as your projector has HDMI that accepts a video and audio signals you should be okay but remember Chromecast has to be powered by the electric grid or a generator and connected to the internet Wi-Fi network and Chromecast uses the Google home app. once your Chromecast is all set up and named you could push the casting button on the Xfinity stream app and then the Chromecast and the Wi-Fi interacts and sends the live or recorded signal to your HDMI port for viewing and or audio services or both in the case of live TV.
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I am a fan of WSM 650 am frequency from Nashville Tennessee and they started a new TV station on January 1st 2020 called Circle. Circle is owned by Circle Media, (Gray Television, Inc. and Opry Entertainment Group, Inc. http://circleallaccess.com/ yes it is available on over the air but not on Comcast Xfinity cable in Seattle Washington. I do know it is a subchannel of our local cw11 kstw and you only have cw11 and the sub channel start tv, you're not caring grit or Dabl or Circle which is available on the over-the-air signal which is not reliable. They keep talking about circle TV on WSM 650 am frequency and the tv programming on circle TV. Yes I want to watch hee Haw and coffee country Cody and the Grand Ole Opry and other country music related programming from Circle on Comcast Xfinity using the mobile app and the website and my cable box. Please add Circle TV. It's family-friendly and wholesome TV programs from Nashville Tennessee. It seems like you Comcast people in Seattle like carrying a lot of classic TV programs but not a lot of country music related programming that's not CMT viacom-owned programming
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