A few years ago we bought a Roamio Plus and three Minis, all with Lifetime service. Our main TV has gone on the fritz and we're thinking of replacing it with a 4K. My understanding is the Roamio won't support 4K so (since we mostly watch DVR'd shows) either we shouldn't bother getting a 4K TV or we need to get a Bolt. So I have a few questions. 1) In your opinion, is 4K worth it? 2) Do I need to get a Bolt then? 3) Will my old Minis work with a Bolt? Not support 4k (the TVs don't support that) but would the Minis even connect and work with a Bolt. I'm with Charter (aka Spectrum) in Michigan if that makes a difference. We had to get some cable card for the TiVo when we got it. Not sure if we can reuse that either. I'm getting older and wish things would just last forever so I didn't have to change things, lol! Thanks for any help or advice.