Congratulations on the baby!
Regarding the Digitcube, i does not have MPEG4 decoder, as already mentioned.
You need to try with an MPEG2 broadcast, typically using DVB-S, DVB-T or DVB-C. All DVB-S2 transponders I am aware of, use MPEG4. Also, some DVB-T transponders (like here in Portugal) use...