Went to the Logitech site and it appears the 890 now supercedes the 850. The reviews on Amazon really slam it and claim the s/w is buggy and has other probs.

http://www.amazon.com/gp/product/B000CS1TLE/104-1169619-9668723?v=glance&n=172282

Mine is a whole house system with a media server which, I am told, will stay on most of the time. So, while watching TV, all I need to control is the cable box, TV, DVD, and CD as well as the 990/7700 combo.

The 890 might be over-kill but it looks like it's the only RF model.