TV tuners for your computer are pretty old hat, but ones that also work on your smartphone or tablet are new and exciting.
A network tuner can stream TV to PCs and mobile devices around the home. Here's AVerMedia's take on the idea
This analogue/digital terrestrial PC TV tuner combo won't get you HD in the UK but has more to offer than just TV
A reliable and well-specified external satellite tuner with DVB-S/S2 compatibility, CI support and Mac/PC software