While the MTV3600 only has one remote setting, the MTV3700 has three different remote settings. That unit can be set up to be controlled by:
MagicTV remote Windows Media Centre remote Xbox 360 remote.
If you have a harmony, you will be able to load all the above remotes and control a single MTV3600 and an additional 2 MTV3700's. NOTE that the MagicTV remote controls both the MTV3600 and the MTV3700.
Good question. I like my MTV3600 with modded firmware and upgraded HDD. I went down the path of getting a MagicTV (MTV3600) and a Panasonic DMR-BW850 (Blu-Ray/HDD Recorder) so I could easily get recordings off both units, and have the 1 minute jump forward.
Mind you, it was not until about 1.5 years after I purchased the MagicTV that the hacked firmware was available.
One thing to consider, get the MTV3700 and then make sure that anything you might want to keep, you record on the MTV3600, and make do with the Fast Forward rather than the 1 min skip. When I originally got the MTV3600, this is what I did. There was no 1 min skip on the MagicTV, and anything I wanted to keep, I recorded on the Panasonic and then burnt it to Blu-Ray. Now with the modded MagicTV firmware, I am spoilt for choice.
In a year or so, someone else may have modded the MTV3700 firmware and you may then get all the extra features. At the moment, it is just too new on the market for that.