I have been looking for an Ariel to enable me to watch TV via my LapTop, Seen one on E Bay and the seller wrote to me saying if your laptop has a rf in then yes it will work. What is a rf. when I load my player I get two graphs one rf and one power, does this mean I've got rf. Yes it does work yes I can watch TV

I imagine he is referring to the type of adapter plug on the end.

It will either be a standard coaxial plug or a mini one that you need an adapter for.

Standard aerial plug:

You could try;

http://www.tvcatchup.com/

It's avalilbe for all UK households with a TV license (although they don't check), and lets you watch all the freeview channels in real time. Quality wise, it blows up onto a 26inch monitor reasonably well and is only about 4 seconds behind the main TV broadcast. Free too.