After using the 630 for several days and trying multiple recordings it appears as if the firmware is full of bugs or I have a defective receiver. Noting that others here have experienced the exact problems as I have, I am leaning towards buggy firmware.
The 630 occasionally locks up with frozen video yet audio continues. The remote does nothing. Only a reset fixes it.
Setting multiple timers caused my unit to lose video and none of the programs shown in the PVR list would play.
I really wanted the 630 to work as advertised but mine certainly does not.
So the Bell 9241 wins the contest at this point in time IMO, until SD can write decent firmware.