To add - the TiVo-platform is fundamentally designed around recording, and thus 1: All TiVo & V6 have hard-drives, in addition to 2: The platform allowing multiroom streaming functionality
Horizon-software is designed around apps & cloud-based services, recording is a bolt-on. Hence a new TV360 install having one-master box and additional minis.
Converting multiple V6 into TV360-masters mitigates for this, but if any of those master boxes develops a fault, they are replaced with minis. You are advised to replace your TiVo with a V6 in the first instance, and then consider any potential conversion to TV360 as a separate thing.
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