Here are the following steps to use internet on smart tv : We can connect TV by Wifi or Wired connection.
Through wifi first Press Menu and scroll to the Network option then set the Network Type to Wireless. Select Network Setup and select your Network Name to which you want to connect. Then enter your WiFi password à select OK button.
For wired connection: First we need to connect one end of an Ethernet cable to the LAN port of the smart TV , then press menu and select network type and there after select network test and press OK.