A multi-channel tuner apparatus is provided which is capable of
simultaneously and independently selecting a plurality of channels for
reception. The apparatus comprises a plurality of tuners, each of which
converts a selected channel to a near-zero intermediate frequency. The
output signals from the tuners are supplied to respective sample/hold
circuits, whose outputs are supplied to a single analogue/digital
converter for multiplexing the tuner signals and converting them to the
digital domain. A common demodulator arrangement processes the digital
domain signal to extract the information from all of the selected
channels.