Hi,
Today it is possible to choose from either can-type tuners (like philips, alps, toshiba, sharp,..) or single-chip tuners (microtune, motorola, broadcom,..). The exact choice depends on standard coverage requirements (NTSC/PAL/SECAM?) and kind of signal processing used after a tuner (analog or digital). Please specify additional details. By the way, simple means by design or by cost effectiveness?
Regards,
F.S.
your request is not well defined, but a simple TV tuber would be the voltage sensing tuner (VST) that the center frequency of the RF filter is adjusted according to the applied voltage. many companies produce this type as LG, Timic, Philips, ...etc