If you have an Amazon Fire TV or an Amazon Fire TV Stick you would probably love to watch and enjoy NOW TV on this TV. But, the NOW TV application can not be found by default on the Fire TV so it seems hard. But, luckily there is a way to fix this, but be prepared for the fact that it will still not work perfect.
Before continuing you need to be aware of the fact that NOW TV only works in England, meaning that you will need to have an English IP address for this to work. Since you want to run this from the Fire TV or the Fire TV Stick it means that you will need to make sure that your router is connected by a VPN to a server in England or that you have a SmartDNS setup which will point in the direction of England as you get data from NOWTV.com. This is the basic!
The next is that you need to do something which is called sideloading. In other words you will need to upload applications from your mobile phone to the Amazon Fire TV and then you can start them from there.
But, the NOW TV Android application is not at all a good friend of the Amazon Fire TVs, so you will need to get some virtual mouse or something for this to work. A detailed description on how to upload applications to the Amazon Fire TV and how to get your mobile working as a mouse can be found here.