Free Entry Shows

What's stopping me booking free entry tickets every single week even if I know I'm not attending?

Does a free entry event ticket guarantee entry?

What time should I arrive to guarantee entry?

What happens if it is full when I arrive with my free ticket?

How can I guarantee entry?

Why are the shows free?

Can I order food before a free show?

Is there any entertainment inside the venue after the free entry show?

What is the difference between free tickets and guaranteed tickets?