Argos have great deals on NOW TV at the moment.
Now TV Box plus 6 months Entertainment Pass only £19.99.
http://www.argos.co.uk/product/4590602
Now TV Box plus 4 months SKY Movies pass only £19.99.
http://www.argos.co.uk/product/4536886
Sort out your years entertainment for only £99.95 (£8.33 per month)
You could probably make some money back selling the spare NOW TV boxes on E-bay or Amazon.