A tuner is provided for selecting, independently of each other, a plurality of radio frequency channels for simultaneous reception. The tuner comprises a plurality of up converters whose outputs are combined in a combiner. Each up converter operates independently of the other up converters to select a channel from a multi channel input signal and to convert the selected channel to a first high intermediate frequency. The intermediate frequencies of the up converters are different from each other. The common signal from the combiner is supplied to a down converter which converts the signals at different high intermediate frequencies to signals at different lower intermediate frequencies. Thus, the signals from the combiner and from the down converter carry all of the selected channels at different intermediate frequencies. The signal from the down converter is subsequently processed to separate the selected channels and demodulate them. This may be achieved by a common demodulation circuit, which processes channels simultaneously.