Last part is not completely simple the boxes we get here in Buffalo that run SARA (the Scientific Atlanta ResApp) don’t make use of the extended Tribune Media Services data that contains those fields. The current versions of the internal developed Mystro and OCAP Digital Navigators do not use it as well. The engine powering the later is referred to as GRID2 the newer renditions will use GRID3 which will use extended TMS data.
Although that is just one of the many problems. I will say that long term TWC internal software has much much promise but it is not that old and mature yet.