Ich hänge euch einmal einen Plot von DV Metadaten an. So kann man evtl. einmal ein wenig besser verstehen, was hier passiert. (sind nur P8 Metadaten) Hier sieht man, dass für 1068 Szenen Helligkeiten definiert sind.
Anbei auch einmal einen Einblick in die Metadaten für einen scenecut.
Spoiler anzeigen
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Der Vorteil bei TV led ist, dass hier die Metadaten an den TV durchgereicht werden und dieser die Daten verarbeiten und interpretieren kann. Bei LLDV/Player led werden die Daten auf dem Abspielgerät verarbeitet und interpretiert. Das kann gut sein, muss es aber nicht. Viele Geräte boosten die Helligkeit, was viele als besser wahrnehmen. Hier könnten aber Details in helleren Bereichen absaufen, da die TVs das gar nicht mehr darstellen können. Daher ist TV led vorzuziehen.