There's a good deal on Amazon if you're quick, a Roku 3 box with 3 months Now TV Entertainment Pass for £49. The Roku 3 alone is usually £99. Deal ends at midnight or whenever they sell out.

http://www.amazon.co.uk/gp/product/B00UB0G4HM

Wow, if i didn't already have a FireTV i'd snap that up.

£59 now

still a bargain