Unhelpful comment alert: The RFoG docs I read were just confined to the (analog) physical layer basically the simplest optical-to-electrical transceiver/media converter, assuming I read it right. It was all about saving money and getting backwards compatibility at all costs because they don't have to swap out so much kit, nor have two lots of separate systems in some parts of the setup. Seeing that costs (which does include reliability) not performance are where it is aimed, then I wouldn't be too surprised if someone told me they were still using the same horrid broadcast system. But I have no idea, haven't found anything in my reading yet. Performance should be really good though because if the low SNR.