I have never owned a Tivo but am considering a Roamio Plus to replace my current Verizon Fios "whole house" DVR. While everyone says I'll gain a lot, my questions include: 1. What Fios features/functions will I lose? 2. Is 3D supported? I often order VOD in 3D. 3. This is going to sound stupid, but I've gotten really spoiled by CallerID on screen. It's a safe bet I'll lose this, right? Thanks for any info you can provide!