Spectrum installed both internet and TV. When I asked about a DVR system they wanted to install a DVR on each of the 4 TV's that I have. Spectrum does NOT have a whole home DVR system, they stopped providing that type of service years ago per the installer. So after they installed the internet and TV, I had 30 days to cancel without penalty. I cancelled the TV side and had DishNetwork install my old system in my new home. I still have Spectrum internet and it's working fine for now. That is why Spectrum only gets one star, the installer was professional and did a very nice job.
I did a self install with my own modem. It took two calls to find an agent who knew how to properly provision my modem, but both agents were very respectful and I appreciated them doing their best.