Kieran Dhesi sent this in.

I was just browsing at freebies that Sky UK customers receive this month and saw that TNA via Sky Rewards has been issuing free tickets for all (or some) of their venues in the UK such as Nottingham, Manchester and their live taping in London.

It is on the main page:

You’re eligible for Sky rewards by simply being a Sky customer in the UK, and a lot of people seem to have taken advantage of it since tickets for all venues seem to be sold out.