Xbox live question?

Whenever you order anything from Xbox live does that make you confirm the purchase or can you just hit purchase?

I could have sworn Xbox said Duck Dynasty was free this week.
So, I've been watching it every now and then.

Every time I watch a new episode, I hit purchase, and it just plays.


As far as I knew, if you actually spent money, you had to confirm the purchase?

I really don't want to pay just to watch them. I can just wait for Netflix.

Yes they make you confirm purchase if it costs you money  

You have to confirm it. It's not charging you, I got the first 2 seasons of Duck Dynasty this week as well from marketplace. Go over to video and click on xbox video. Next click "my tv shows". If it's there you got it, but it didn't charge you, there would have been a purchase confirmation.