Allan: fair points. i should have said not dramatically better.
Bigger hard drive isn't that great imo, considering that one could hook an external 2 TB drive with sata to the 630.
Wifi? I mean, i guess if you want to stream shows on your sat receiver, that's cool. It's redundant for me, since my tvs have wifi
how is it worse?
no clock or front display (maybe not a big deal to some)
no component output is disappointing. i have two of my receivers (630 and 605) connected to two tvs, one via component, the other via HDMI. the 800 series doesn't give that option
a lot of posters had hoped that the 800 series would have had more features. but like ExDilbert said, Bell and SD have very little financial incentive to innovate.