Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Will xfinity x1 dvr work with Harmony 880?
Document: I've had several "universal" remotes in the past, but none that truly were until I got the Logitech Harmony 880. Others worked fine with my cable box and tv, but couldn't handle the surround sound system. This one handles my tv, cable (dvr) box, surround sound system and dvd player. Only drawback, is that it is too small for my mother to read the buttons when she visits or stays over. Otherwise, it's perfect.
I'm very happy with the harmony 880 remote. Only key point I will make beyond all the good stuff already said by others is that it works great with my cable box/dvr. I was a little concerned that the remote would not be able to handle the dvr functionality based on some other reviews but this was not the case. I have a motorola qip-6416 box and the remote handles both cable box functions and dvr functions for the box flawlessly.
Finally I no longer have to pick up 5 remotes to work my Tv, receiver,dvd player,cd player and dvr this product is worth its weight in gold easy to program i"ve thought what took me so long I recommend this product to any and everyone who have tired of working several remotes I give it 10 stars its wounderful and I have no regrets
Works like a charm. Takes a while to setup all your devices and activities so they all work together, but once you get the hang of it, it's a breeze! Love the fact you can change the display background, create your own slideshow, for what I don't know other than to entertain yourself lol; but overall, remote does what it is supposed to do. Have my hd tv set up with a satellite box, video switcher, dvr, dvd player & blu ray theater.
i had programmed an earlier logitech model a couple years ago for a friend and noticed then that this company really produced when it came to customer service and user friendliness. i purchased the 880 to complete my parents' new media center which includes ...  hd cable dvr, hd sattelite, vcr, dvd, receiver, cd, tv. i had the initial set up done in 15 minutes by just typing in the product models and inputs they were using.
In fact, I found myself not buying new hardware because I was too lazy to "make my remote" work with it :).So after some research, I settled on the Harmony 880. For me, it's just what the doctor ordered.
The Harmony 880 and 890 remotes are the first multi-device remotes that have truely allowed me to pack up all the factory remotes and store them away. After the harmony units are programmed, which is a breeze, these remotes work flawlessly.
Two of my TiVo remotes were finally wearing out. Some of the buttons on them didn't work so well anymore, and it was time to replace them. But I decided not to buy another TiVo remote. Nope, I went for the Logitech Harmony 880 Remote.
When I stumbled across the Logitech Harmony 880 Advanced Universal Remote Control, I was excited because I hadn't been able to find a universal remote that would work for the ALL the various components I needed to control (some components are rather dated).
I haven't gotten a single "I can't get the TV to work right" call since we started using the Harmony 880. That's probably the biggest compliment I can give it.So we've only been using it for a bit more than a month, but so far it's two thumbs up for the Harmony 880.
Answer: It should, but I don't have personal experience with that particular DVR.  I have used this with other DVRs, Blu-ray players, Wii, Xbox, receiver, Dish, etc. This remote is great.