Spin said:
Yes it works but honestly the Dish DVR works and looks better. The tivo mpeg encoder chip is not as good as the mpeg encoders used to broadcast. If you already have a tivo then it will work with the IR emitters that ship with the tivo.
Actually, the Dish DVRs don't have MPEG encoders. They record broadcasts as a digital stream. A syandalone Tivo has to have an encoder to record and a decoder to play back, which is why the picture degrades.
I have a series 1 Tivo standalone driving a 322 receiver. I have not covered the IR window on the 322. I have put the IR blaster LEDs so the 322 can 'see' them. This setup has worked for more than a year without a problem. The IR library has IR codes that work with most Dish receivers, as far as I know. There are a couple of things you need to do to make the two work without a problem.
First, Set the channel preferences on the Tivo only to channels you receive. This eliminates Tivo trying to tune in a channel that you do not get. If the Tivo tries to tune an unsubscribed station, the receiver will throw up an error message that will require the Dish remote to clear.
Second, set a manual timer on the 322 to fire approximately one hour after it is set to check for updates and download guide date. This turns the receiver back on and eliminates the Dish screen saver (I think there is an option in the 322 preference for the screen saver to not be used at other times. You have to know that the Tivo cannot record anything during that one-hour period.
The picture quality is marginally better on my 522. On my 60" TV, I can sometimes see the difference. On anything smaller, they both look the same. The feature set on the 522 would be better than the Tivo except for the stuttering, timer bugs, and, in my opinion, less user friendly user interface.
I still use the Tivo if I want to be sure a program records. With the 522, there's a risk that an 'undocumented feature' of the software version of the month will interfere with what you expect the DVR to do.