Connecting Comcast Xfiniy Gateway modem/router combos for to smart tv

Aug 26, 2018
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After choosing Comcast Xfinity for my ISP - I'm a Streamer and won't be subscribing to Cable TV service - I plan to hardwire a compatible Gateway modem/router to an LG OLED55C7P TV although unclear as to whether I'd also need to run an HDMI cord between them. Would the aforementioned ethernet connnection make that unnecessary?
 
Aug 26, 2018
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Aug 26, 2018
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Awesome... exactly what I was hoping to hear. Only thing left now, is to choose a Gateway suitable for 4k streaming + routing a Wi-Fi signal to my Galaxy s7 phone. Don't suppose it needs be that powerful given my limited requirements for a room of about 150 sq. ft. Thanks for your help.
 

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