See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
TIVO EDGE For Antenna (2TB)
Most useful FCC documents are under short-term confidentiality until 12/19/2019.
This model has four ATSC tuners and a 2TB hard disk drive (HDD). This FCC entry also covers the TiVo MG3-OTA-L which has a 500GB HDD and two ATSC tuners.