D34D M34T said: "If you're tracking 4K (Netflix House of Cards for instance) then 24TB is reasonable. I have a 4K 7+ minute video I produced - 12+GB. Figure high quality 4K at about 100GB per hour. I have an 8TB NAS (about $600) for editing/storage"
No, the difference between your raw video and the video you get from a streaming service is that the stream is already quite compressed, so storing it in an uncompressed format would be a waste. Netflix currently compresses its 4K streams down to around 15mbps, which works out to around just 7GB per hour, similar to the bitrate for typical 720p/1080i broadcasts from cable or satellite providers. Even if the Tivo is re-encoding the video, you're going to see significant artifacts whether the stream is re-compressed or not. And that's assuming the Tivo can even handle 4K video, which it probably can't.
When it comes down to it, there simply isn't much 4K content out there, and there probably won't be for quite some time into the future. Broadcasters and Streaming providers don't even provide content at 1080p Blu-ray quality yet. A 4K stream with a bitrate lower than many 1080i broadcasts for a few shows seems like little more than a pointless gimmick. Content providers are not going to support 4K to any meaningful degree in the near future, and most people are unlikely to see much benefit from replacing their existing HD sets with 4K models.
In any case, I suspect this product is primarily aimed at video hoarders who record anything they might, at some undetermined point in the future, consider watching. And honestly, it seems like a bit of a rip-off at $5000. Six, 4TB drives currently cost around $900 total, and a typical Tivo runs a few hundred dollars. Even considering higher spec equipment and a larger case, there's still a good $3000+ markup in there.