Listen, SMS, the tape recorder is disturbed.

I will only talk about the three most likely aspects.

First of all, when you watch TV, you receive a signal of a certain frequency from TV.

If the signal frequency of some other TV station or radio station is just close to the frequency of the TV program you watch, then such interference will occur.

Second, there will be the use of high-power electrical appliances in nearby construction sites. The electromagnetic waves emitted by general electrical appliances are just received by TV and disturbed.

Third, it may be the TV itself, such as loose wiring, or the modem inside the TV has changed. You can judge this by reconnecting the wired interface or twisting the antenna. If it still exists, change the channel (it is best to judge that there is no construction in the nearby construction site)

Pay attention to electric shock in the above operation! !