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Hi Quirilio,
based on the information provided to me by Elgato, it should be 
supported (as it's not in the list of exceptions). I have no 
possibility to test or verify that info myself, though.
If you have EyeTV and Remote Buddy running at the same time, then 
press a button on your remote and it does not turn up in Remote 
Buddy's preferences, the list of exceptions is probably not complete. 
Please let me know, if that is the case, and I'll add the EyeTV 200 to 
the list of currently unsupported devices.
The driver chain works like this: 
Remote > EyeTV Hardware > EyeTV > Remote Buddy
So, if there'll be support for the EyeTV 200, it needs to be in EyeTV. 
Please understand that I can't make any statements on behalf of or for 
Elgato on whether of when support for the device is added should it 
not be currently supported.
Best regards, 
Felix