The U50S6806 supports an 802.11n wi-Fi standards which is newer than most 4K and 8K TVs that were released more than a year ago. Most TVs that were released one year ago support an 802.11a wi-Fi standards. In addition, this TV support an 802.11ac and 802.11g wi-Fi standards.
An 802.11n wi-Fi standards is actually the best supported WiFi standard across all TVs of this type and age.
The worst supported WiFi standard amongst comparable types of television is IEEE 802.11n.