How far is it around the TV? It is best not to discharge.

There is no standard for this, and in many cases it is no problem to put it with the stereo. In fact, as long as it is not placed with high-power motors or other electrical appliances, it is enough to avoid the proximity of permanent magnets. Of course, it is best to stay away from inferior energy-saving lamps and the like to avoid signal interference caused by electromagnetic radiation.