For our ranch home with basement, I have had DTV/U-verse DSL for several years. 3 Wi-Fi TVs, 3 DTV Wi-Fi boxes, 3 laptops, iPad, and a Kindle, work just fine with no interruptions. 3 devices at a time and still avg 75Mbps from source server 50 miles away.
The basement has concrete walls and the Gateway/Router is situated at one end of the basement, where I have our HT room. Having 75Mbps internet actual avg. speed, there has been NO interruptions and the streaming on 3 devices at the same time, has not been an issue. I am just saying DTV/ATT U-verse DSL internet, has been fantastic for several years. Signal strength to my kitchen laptop, 40 feet away, has all 5 bars with Wi-Fi. I pay $40/mo for internet with more than enough speed to all devices.
The only Cat5 cable being used is to my Denon AVR. All software updates for the TV's, Laptops, and AVR, have downloaded perfectly. I do Wi-Fi Microsoft Win updates most every week, with ATT U-Verse DSL.