Not quite. You are correct about the HDUI, MRS, the disk usage meter, and full feature support on the smart devices, but you forgot Hulu +. The Series 3/TivoHD has parental controls, and because the Netflix and Youtube interfaces were upgraded on the TiVo side of things, Series 3 users are also getting the interfaces in HD now. Also, the Series 3 Tivos have a disk usage meter. It's called the 'Recently Deleted Folder'.