Advertisements After 2 years of wrestling with Google Fiber TV, I am throwing in the towel and moving back to Spectrum + TiVo. I have a Roamio Plus and 2 Mini's (1 TCDA92000 and 1 TCDA 93000). Even after 2 years of gathering dust, everything still works., and I am thinking about adding a 3rd Mini (Vox). If I understand things correctly, the Mini Vox has 4K, or at last UDH, capabilities. However, since my Roamio maxes out at 1080i and my cable provider (Spectrum) broadcasts at 1080i, I am wondering if the Mini Vox does any upscaling. Question(s) regarding the new(er) TiVo Mini Vox: With a Mini Vox connected to a Roamio, does the vox attempt any upscaling? More importantly, will any of the associated apps (specifically Netflix and Prime) pickup the 4K stream natively? Or does the stream flow through the Roamio, thus downscaling to 1080i. Reason for asking is that I also run the TiVo through my Denon denon avr-x6400h receiver, which does its own 4K upscaling.