Thanks! We're trying to expand quickly, so please do come back!

We tried to use FB sparingly. It's useful to us because if you want to post comments or suggest an item, it's now much more likely you're going to tie it to your account. This hopefully helps reduce spam, on top of the obvious benefits of sharing with others in your feed. You can also "love" (vote up + save) items if you're logged in.

The flip side is that the site is very usable without ever logging in, which is fine too. The login is only needed if you're trying to discuss or further interact with the site. I think it's a pretty good balance.

you should make it more obvious how to contribute or otherwise allow the user to cause more shows and stuff to appear.

I'm the same as you with regards to the Facebook account, but I know my friends who'd go for this wouldn't blink twice.

I'll spread the link around and see what happens.