1. Turn off your SHARP TV and all connected devices. 2. Unplug the TV's power cord from the electrical outlet. 3. Wait for at least 5 minutes to allow any residual power to discharge. 4. Plug the TV back in and turn it on. 5. Reconnect your external devices and check if the HDMI input is recognized. Tip 3: Reset the HDMI Input If your Sharp TV fails to recognize an input, you may have to adjust the cables, cords or TV settings. DVD and VCR players, PCs, home theater receivers and other electronic devices all need to be tweaked a little bit differently in order for your TV to recognize them. Try these steps out first: Try different sources. If the problem is with the cables used, replace them. Check to see if the problems persist with different streaming services. If there's still a problem, do a reset. If the reset still does not work, consider bringing it to a repairman. 3. My Sharp TV Pixelates or Stutters My Sharp Aquos HDMI inputs suddenly stopped working. The TV screen works, and when I plug the DirecTv box into another TV using the same HDMI cables, it works fine. Issue appears to be with my Sharp TV HDMI input thoughts? Technician's Assistant: What's the make and model of your tv, and can you guesstimate how old it is? The good news is that you can program your Sharp TV without a remote control. Here's how to change the input by using the buttons on your TV instead: Press the Power button to turn on your TV. Press the Input button. You'll see a list of input options. You can use the Channel buttons to move up and down the list. 1. Open the Camera app on your Android or iPhone. 2. Point the smartphone's rear camera toward the upper part of the remote and Press any keys. For a hard reset: Unplug your TV. Press and hold the "Channel Down" and input" buttons on the panel. Plug the TV back while holding down these buttons. Seek assistance for this step if you have to. Keep holding the buttons until the TV powers back on. If it doesn't work, unplug the TV and try again. Adjusting input settings on your Sharp TV is a breeze! You can quickly and easily configure the inputs to match up with all of your devices. To get started, you'll need to access the Input Settings menu from the Home screen. Once there, look for the option labeled Input Setting Adjustment. bkUdch.