Is there anything else I will need to pick up TV programs? I have just installed media player and it says I need other components to get TV.
Windows Media Player or the app you've installed is not enough to watch TV. In 90 % of the cases you also need the hardware that's attached to PC in different ways (PCI slot, USB, etc) to be able to watch TV. Plus a cable subscription is also necessary as well.
I've checked and I was right, the app requires a TV tunner card attached to PC in order to watch TV Channels.
For additional info, check the following website: http://pctvsystems.com/tabid/62/default.aspx/Downloads/Application/tabid/124/language/en-GB/Default.aspx