The popping or cracking noises you hear after you turn off your TV are caused by different parts inside the TV contracting as they cool. It is caused by the thermal expansion the metal chassis of the TV goes through during the warm-up phase. These sounds are normal, and happen in a variety of different enviorments.Click to see full answer. In respect to this, why does my Samsung TV make a popping noise?TV makes a cracking or popping sound. Hearing cracking or popping noises after you turn off the TV can be alarming. TVs use a combination of metal and plastic material. These materials are subject to expansion and contraction due to temperature changes.Similarly, why is my Sony TV making a clicking noise? If the clicking noise is coming from inside your Bravia, then a problematic component is the most likely cause. Your Sony’s audio board uses a series of capacitors to store and maintain the flow of electricity. When a capacitor starts to fail, it begins to bulge. Instead, you must have the capacitor replaced. Regarding this, how do I fix the crackling sound on my TV? A crackling sound may indicate an issue with the media device or possibly a blown speaker. Check the cable used to connect the media device to the TV. Try to use a different cable, or use the same cable on a different TV (in case the cable is malfunctioning). Check the audio output settings on the media device. Why does my Vizio TV make a popping sound?Your Vizio TV may include advanced audio settings that may be capable of causing popping sounds in your TV. Disable the STS TruVolume settings in the “Advanced Audio” menu and see if the popping noises persist. Your TV may be trying to compensate for a weak audio signal when using a satellite or digital cable signal.