Hi @ken242
This Help guide linked below should explain how you friend can sign up to nowtv and take advantage of free trial.
Just remember if they don't want to continue with the service after the free trial period then make sure they cancel before the trial period ends.
https://help.nowtv.com/article/how-to-create-a-now-tv-account
If your friend wants to commit longer than the free trial and take advantage of the 50% discount saving on passes (new customers only) then in your friends browser search engine type in "nowtv offers" where they can sign up by selecting which discount pass you wish to purchase and just follow the link to set up a new account for a new customer and purchase a discounted pass.
