Why can't I watch TV when it thunders in rainy days?

There is no rule that you can't watch TV when it rains. Only for rural power supply system, due to poor lightning protection facilities, there may be some danger, for cities. There is no limit. On the contrary, many power line equipment, including TV broadcasting equipment and communication equipment, will work as usual in rainy days and thunder, and it is impossible to stop.

However, if the lightning is close to your place, it is recommended to turn off the TV. When it thunders, one is direct lightning, that is, lightning strikes the power line and cable TV transmission line, and the strong lightning voltage will damage electrical appliances, such as the power supply part or tuner part of the TV set. The other is induced lightning, that is, lightning does not directly hit power lines and transmission lines, but hits other objects, and at the same time produces strong electromagnetic induction, which produces induced voltage on power lines and transmission lines and also causes losses. Therefore, to turn off the TV when lightning is approaching, it is best to unplug the TV signal input line.