Digital TV Tuner for PC at 23£

I have not seen one cheaper than this: Digital TV Tuner for PC Systems External USB TV Tuner TF490 SPECIAL DEAL

€uro19.98 (€uro22.98 Including VAT at 15%)

AVerTV DVB-T USB 2.0 connects Digital TV with your PC or Notebook and allows you to watch free-to-air digital terrestrial television channels with no subscription to pay.

Or this one at £30

AOpen's Xrecorder VX2000 is an external analogue TV tuner which can also perform still image capture and video capture using MPEG-2 hardware compression, so everything you need is found in an external box rather than an add-in card.