You can only friend Facebook user profiles. All of the links in this thread so far have been to Facebook pages, which get likes, not friends. Making a page requires a user profile, so you just need to share the link to that profile if you'd like to make Facebook friends...we can't find that link through your page unless you write about it there.
Here's a page that details the differences between profiles and pages:
Also, you can like other pages as a page:
And you can take it a step further by featuring your page's likes on your page itself:
...which means you're doing some friendly advertising and supporting other serials just by liking them.
EDIT: haha, in the time it took me to write this, there was a flood of posts. Oops...hope this helps anyway!