This high definition Terrestrial receiver is Freeview certified and is working well. We have just upgraded to Tivo so this unit is no longer required, purchased for $299.

Technical stuff from the manual:
"ZMT-620HD receiver is a MPEG-4 and MPEG-2 compliant High Definition receiver with MHEG-5 interactivity and Television Broadcast Service Logical Channel Numbering (LCN). Its capable of receiving terrestrial high definition and standard definition TV program from terrestrial broadcast. The friendly On-Screen-Display (OSD) guides you to configure your receiver, and then you may enjoy all the high and standard definition channels with crystal clear picture and stereo sound quality".