Philips DSR6000R DIRECTV Receiver with TiVo Service
The tradeoff...
To keep the cost down, this unit trades an mpeg compressor for the satellite receiver.  This means it can't record anything but what comes in off the satellite receiver.  The plus side of this is that it records the bitstream directly, so there's no loss of quality.  The other digital recorders recompress everything, and even on high quality mode, there's a noticeable blockiness to fast moving detail (sometimes not-so-fast detail).  So this unit will give you a better viewing experience for satellite channels.