A:AnswerYes, Wi-Fi is built in and will connect pretty seamlessly.
I put this TV on my back porch under the covering and am running Apps over the wi-fi so I didn't have to run any cabling to it.
A:Answer1 year,,, I usually don't, but I did buy the extra 5 yr. cause I don't know how well the sets are today. My last set(lcd samsung) lasted 15 years with only 1 problem,so....
A:AnswerIt definitely doesn’t need a Roku or cable. It’s a smart TV. Use your WiFi to stream your favorite channels including Roku. Samsung TV+ let you stream 500 channels for free. For local channels you do beed an antenna. Look at the pictures I’ve attached.