Advertisements I was at my GFs house several days during the Holidays. Her TiVos are still running the HDUI. It was then I realized how much I actually missed using Hydra. Most things are much easier with Hydra than with the HDUI. I was really missing it when I was using her Roamios. She is resistant to change so doesn't want to switch to Hydra. But it was also the same with for her with the SDUI. Once she finally switched to the HDUI, she liked it better than the SDUI. But it took her many years until she switched. So I don't expect her to switch to Hydra anytime soon. Unless she is forced to.