Suddenlink has upgraded its services in two Texas towns and one in Oklahoma.The MSO increased the download speeds of its three high-speed Internet services in Lake Livingston and Onalaska, TX. Services with download speeds of 1.5, 10 and 20 Mbps have been increased to 3, 15 and 30 Mbps, respectively. Current customers will receive the related new speeds automatically, at no added charge.In Lindsay, OK, Suddenlink is now offering HD video, starting with more than 30 channels.