Found 14th Oct 2012
I'm sure this offer is on and off every couple of weeks, but I've just noticed that Quidco have a higher than normal rate of cashback at £15 just for taking the 30 day free trial. The only stipulation I can find is that you have to watch 120 minutes of streaming video. Full terms on the Quidco link and it expires midnight tonight, so be quick! I did a similar offer in the summer and it paid fairly quickly in just over 2 months.