tv sound is much easier than ht as tv sound is compressed, sometimes so much that it's not funny.
compression has been used on tv since prehistoric times so even if i was to write to the stations (i actually did a few times) asking to take the compressor out of line, they would play dead.
another thing, just like cars, electronics don't need to rest, they just need to not get too hot. they can work 24/7.
i haven't used the tv's speakers since the mid 80s, except maybe for a couple of evenings to see how they were doing. The main problem with the tv spkrs is, as expected, lack of dynamic range.
