Thank you very much for your detailed feedback, really appreciated the time you spent in explaining everythingDiagram looks GOOD, with the caveats previously cited:
- No "PoE" MoCA filter is needed on the Internet modem line;
- A "PoE" MoCA filter is required on the input of the top-level "OTA" splitter;
- The 2-way splitter in the remote room(s) could be skipped if the chosen MoCA adapter has an RF pass-through port (to which the TV could be connected).
- Amplifier shouldn't be necessary if one isn't currently required, though the attenuation/specs of the replacement splitter may be marginally more severe.