The TiVo & V6 run the same software, so there's nothing inherently more complicated about it than the TiVo. And as with any box-swap, losing your recordings is - I'm afraid, par for the course.
The V6 is a much newer box, and is massively quicker than the TiVo in general operation. Being quicker, it can run many more streaming apps.
There's 2 main techie differences. Firstly it doesn't have an inbuilt internet connection like the TiVo - so it relies on a (WiFi or Ethernet cabled) connection to your VM homehub. It's the internet that makes your OnDemand, TV Guide updates and other online functions, work.
It also has 6 recording tuners rather than the TiVo's 3. In other words, it can record/watch 6 channels simultaneously.
If you've been offered a free swap to a V6.... bite VM's hand off
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