My ME 3830B analyser (yes, analyser with "s") can detect signals in frequencies range up to 100 kHz. Units are V/M at this range of frequencies. I measured signal, that comes from regular TV (of model Toshiba something). Distance is pretty close, but this is one kids keep from TV playing near to it. After that I attached Sony head set to TV with long cable. Readings from Headset are high in this position. After that I detached head set from TV and readings came to 0.
What does it mean? This means, that radiation signals, generated by TV, can easily travel through head set cable and person, who uses head set in this situation, will be irradiated.
I think that there are good TV models, that have safe radiation-free IO (input output interface). But each TV model must be measured to see exactly what happens.
If you will attach such headset to computer's motherboard output, then I am sure in most cases there is no radiation there. I measured it for several computers.
If you ever wondered why you fall asleep so fast watching TV with headset, then one of the reasons can be this issue.
Thanks for watching.