Topfield PVR TRF-7160 (500Gb hard disk) $200 including shipping (refurbished unit)
Having two physical HD tuners means you can either record two channels at once, or record and watch, or record one channel while pausing another. The firmware update mentioned above enables Quad recording (this is promoted heavily on the box) but there’s a bit of a trick here.
In the whacky world of digital TV, services (ABC, Seven, Nine etc) are split into sub-channels: ABC2, ABC3, 7TWO et al. When you enable Quad Recording, you can record two sub-channels at the same time from one service, and then another two sub-channels from another.
So you could record ABC HD, ABC2, 7HD, and then be watching 7TWO. Sounds confusing? The remote helpfully blacks out all channels that can’t be viewed because of current recording.
Even without the firmware upgrade, you can record two channels and watch a third as long as its on one of the services being recorded.
Internal Hard Drive 500Gb - up to 200 Hours
DVB-T 2 x Mpeg4 - HD
Record 4 Services Yes**
Record 2 Channels Yes
Simultaneous Playback While Recording Yes
Custom Favourite List Yes
Free to Air Electronic Program Guide Yes
Pause Live TV / Time Shift Up To 5 Hours
HDMI Out Put Yes
Component (YPbPr) Out Put Yes
Composite (CVBS) Out Put Yes
Digital Audio Optical Yes
USB 2.0 Support Yes
Network Connection LAN
Web Server Yes
TAP Support Yes**
External Hard Disk Drive Support Up To 1000Gb (1Tb)
Fast-forward and Rewind Speed Up To 128x
Skip Functions Yes (Variable)
PhotoViewer with SlideShow Yes
Media Player- Divx HD Certified Yes
MP3 Player Yes.
Link: http://www.topfield.com.au/ click on "shop online"