They have scripts, and videos, and BTS stuff.
Discovered it in reference to ep 3: http://www.outlandercommunity.com/index.php?f=insideoutlander&s=203
Don't know if it's US only, sorry int'l-sassies.
Also didn't want to make a post for each piece of content on there.
Anyway, signal boost for exclusive stuff on there I haven't seen in other places!