The sky will have only picked up Astra 2 (where sky is) unless you moved the sky dish, the Hotbird, Astra 1 and eutelsat share some channels but they are in different orbits
Where is the sky dish you're testing it on? If yours at the same house then you could just buy a cheap quad LNB, run both recievers off the same dish and then sell the ross dish/lnb