Hi Karsten~~
Yes, I'm in the US. If your dealer can upgrade your BS3 software to the latest version (3.1???), the Beo4 will control the AppleTV perfectly. I connected mine via HDMI and use the VMEM button to access. We also discovered that connecting the R/L audio cables were necessary to allow the BS3 to control the AppleTV. Don't know why, but when we connected those cables, everything worked fine.
I have to tell you, the picture and sound quality on the AppleTV thru the BS3 are terrific-- and loading photos to use as the screen saver or in slideshow mode is the best way to display and share your digital photos with friends. I was surprised how well TV shows and movies looked and sounded as well-- both those purchased via iTunes, and those I loaded via other sources.
Hope this helps. Please let me know if there are any other questions I can try to shed light on.
All the best~~
Todd