Some of those thing on there are on demand.. so any general TV license may include watching some of them via on demand (but usually is not complete all episodes)
Depending on your TV package, you may not have the license to watch those ones live?
(Well, I guess there is always the 'box' issues too. If you have an SD box, may not be able to get a channel which is only available in HD only. Or boxes like the DTA which only allow selected basic channels)