Another deluded person who thinks this kind of thing works.
Yes it was on the BBC Newsnight programme and yes, in theory, it works. Unfortunately, it's just the same old pyramid scheme (Google it) of old but re-done for the internet age.
You have to pay money up front (usually £5) to at least one of the offers and then get another 13 people to do the same thing. If they are also trying to get a free PS3 / Laptop / Ipod then they also need to recruit 13 people to do the same thing and so on.
By the time it has got six levels down, over 62 million people need to have paid a fiver (more than the population of the UK), at seven levels it's 815 million people and at eight it's over 10,000 million people (approx the population of the world).
If you then factor in the number of different websites doing this and the number of different products each offers and the fact that most people sign up to try and get a TV, PS3, XBox 360, Ipod etc, the numbers start to get stupidly high much quicker and the only way to get the free gifts is to recruit more and more people - hence all the posts trying to get you to click on their referal link.
The only winners here are the referal websites who collect commission for each offer taken up and the companies like I Love Film who get the business and the only people who get the gifts are those at the top of the pile.
Trust me - they wouldn't do it if it was easy to get the freebies, it wouldn't make commercial sense.