My recommendation hardware-wise would be Vuplus Duo2 or similar Linux/'Enigma' set-top box (STB). I think VDR is ported to Vuplus (and similar STBs platforms) if you want to run VDR. But the information of this seems to be in German.
This sounds very interesting, can you please give some links to good
information
on this, even in German? Is it rather some >WIP status (you stated you
"think"
VDR is ported), or does it actually work?
I think comes from that google search returned something on duo2 + VDR. But discussion is in German which I don't understand and too lazy to use google translate because I nowadays run OpenVIX on Duo2.
But iff (if and only if) VDR works 100% on Duo2 platform I might switch to it.