A method of operating a low-noise block downconverter, LNB, of a satellite dish which is operating according to single cable distribution in which a first user band frequency is allocated for a first satellite broadcast signal receiver to receive signals from the LNB and a second user band frequency different from the first user band frequency is allocated for a second satellite broadcast signal receiver to receive signals from the LNB, the method comprising: the LNB receiving a request from the first satellite broadcast signal receiver to transmit a signal for a broadcast programme channel to the first satellite broadcast signal receiver, the LNB in response providing a signal for said broadcast programme channel at the first user band frequency which is allocated to the first satellite broadcast signal receiver; the LNB receiving a request from the second satellite broadcast signal receiver to transmit a signal for a broadcast programme channel to the second satellite broadcast signal receiver; wherein: if the broadcast programme channel requested by the second satellite broadcast signal receiver is different from the broadcast programme channel requested by the first satellite broadcast signal receiver, the LNB in response provides a signal for the broadcast programme channel requested by the second satellite broadcast signal receiver at the second user band frequency which is allocated to the second satellite broadcast signal receiver, and if the broadcast programme channel requested by the second satellite broadcast signal receiver is the same as the broadcast programme channel requested by the first satellite broadcast signal receiver, the LNB in response provides an instruction to the second satellite broadcast signal receiver for the second satellite broadcast signal receiver to retune to the first user band frequency such that the second satellite broadcast signal receiver receives the signal for said broadcast programme channel which is being provided by the LNB at the first user band frequency. the LNB receiving a request from the first satellite broadcast signal receiver to transmit a signal for a broadcast programme channel to the first satellite broadcast signal receiver, the LNB in response providing a signal for said broadcast programme channel at the first user band frequency which is allocated to the first satellite broadcast signal receiver; the LNB receiving a request from the second satellite broadcast signal receiver to transmit a signal for a broadcast programme channel to the second satellite broadcast signal receiver; wherein: if the broadcast programme channel requested by the second satellite broadcast signal receiver is different from the broadcast programme channel requested by the first satellite broadcast signal receiver, the LNB in response provides a signal for the broadcast programme channel requested by the second satellite broadcast signal receiver at the second user band frequency which is allocated to the second satellite broadcast signal receiver, and if the broadcast programme channel requested by the second satellite broadcast signal receiver is the same as the broadcast programme channel requested by the first satellite broadcast signal receiver, the LNB in response provides an instruction to the second satellite broadcast signal receiver for the second satellite broadcast signal receiver to retune to the first user band frequency such that the second satellite broadcast signal receiver receives the signal for said broadcast programme channel which is being provided by the LNB at the first user band frequency. if the broadcast programme channel requested by the second satellite broadcast signal receiver is different from the broadcast programme channel requested by the first satellite broadcast signal receiver, the LNB in response provides a signal for the broadcast programme channel requested by the second satellite broadcast signal receiver at the second user band frequency which is allocated to the second satellite broadcast signal receiver, and if the broadcast programme channel requested by the second satellite broadcast signal receiver is the same as the broadcast programme channel requested by the first satellite broadcast signal receiver, the LNB in response provides an instruction to the second satellite broadcast signal receiver for the second satellite broadcast signal receiver to retune to the first user band frequency such that the second satellite broadcast signal receiver receives the signal for said broadcast programme channel which is being provided by the LNB at the first user band frequency.