A TV set emits a sound at 16kHz whenever it is turned on. It comes from the line transformer. On some sets it becomes more audible when the set is tuned to an empty channel (showing "snow"). This is because then the line oscillator is not locked to the transmitter frequency, but may be fluctuating, that makes it easier to discern.
The normal range of the human ear is said to be 15-20,000 Hz, but that does not mean that you may not sense sounds outside that range, they will just be very attenuated.
Humans cannot sense electromagnetic waves, like radio signals etc. If you could, it would not be the receiver you "heard", but the transmitter, since the signal coming from the transmitter is many orders of magnitude stronger than anything coming from a receiver.
Sense a TV in another room? Well, I can walk by a house and say: "There is a TV set in the living-room", and I'll be right 98% of the time
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Hans