There is another elegant alternative. These are SAT> IP tuners (search on amazon.de):
Telestar Digibit R1: 4 DVB-S2 tuners (Unicable support)
Telestar Digibit Twin: 2 DVB-S2 tuners (without Unicable support)
Note: These tuners do not have support for satellite antenna motor. They work very well with tvheadend server on any board or PC.