I absolutely love my 880.
I have a Sony Grand WEGA LCD TV, JVC Receiver, Dish 622, and a DVD player.
The 880 works great. I actually set up the chapter forward/back hard buttons for the DVR skip 30, back 10 functions. They still work normally when I am watching a DVD or VHS.
The 880 is infrared, but the 890 is UHF. I think the UHF version comes with an IR repeater for infrared. Check out remotecentral.com for detailed reviews. I was thinking about getting an 890 for my bedroom, to control both my 211, and also TV2 from my 622 in the living room. The consensus on remote central was that the 890 is overpriced relative to the 880, and most recommend that you shop for a separate UHF/IR repeater system. They say that there are very good ones available for less than the cost difference between the 880 & 890 - plus if you ever change remotes again down the road you will already be set up for UHF.
The only gripe most have with the 880 is small buttons, and a hokey charging cradle. They warranteed my cradle, and the new one seems to work fine. The small buttons you just have to live with. After several years with an MX-500 I will take the small buttons any time.
Logitech has the best customer support in the computer industry. They actually answer the phone, talk to you, and help to work out your problems. I had one other problem with the tilt switch not starting the backlight, and they walked me through resetting the remote to get it working again, but were ready to ship me another remote if we couldn't get it going.
Also - I just bought my future son-in-law an 880 for Christmas. I got a great deal from Dell - with shipping & tax it was $142.
You won't find it for that price on Dell's website though. You have to do a price comparison on pricegrabber or some similar site for the best Dell price to show up.
Not sure if they always offer it, but I have bought 2 from them now, and got the lower price both times.