Hi @Anonymous User
Usually what happens is that NowTV will post on the main page of the Community Forum that a new hardware or software trial is coming up and they are looking for trialists to participate in the new trial.
Where there would be a link to click and you will be asked to register your details if you are interested to be considered for the trial.
Not sure if NowTV advertises new up & coming trials on Facebook or Twitter so it might be worth popping on the NowTV Forum time to time to see if there are any new trials being advertised on the main Forum home page.
