Hard reset can be performed by following the simple and easy steps below. Unplug the Television as the initial step for hard reset. Press and hold the channel button down and try to locate the input button on the Control Panel. Plug in the TV back by holding these buttons, and the holding of the button is done simultaneously still the television is turned on. Always the user can go with the onscreen methods. Hope the resets help in fixing your Sharp Roku TV issues. If you need any further assistance any Roku device or on activation Roku code you can call our technical assistance at the toll-free number +1-888-269-1011.