the answer should be yes.
as the resistance of the headphones is probably much lower than the resistance of the audio in on the PC.. a 'headphone output' can then be transformed to a 'line level' or 'preamp' output.
i think there is a category for preamp outputs to have much less electricity than people think.
consumer home audio might be different than studio audio equipment.
no different than studio equipment being different compared to concert equipment.
2 volts for headphones might translate to 2 milliwatts for preamp.
it is also true and worth mentioning,
the resistance of the input can form a 'hand shake' with the resistance of the output from the television.
it adds a third variable to the equation, but it can really help visualize some of the rise and fall of the voltages (or how such a drastic change appears to be non-existant)
i dont think people appreciate how 50 different combinations of the situation can change the answer.
and 'industry standard' can really help lower that number significantly.