How to unlike many facebook 'likes'?

[Sean]

Yesterday I tried unliking a lot of the pages on my facebook as they were constantly spamming me. I have timeline by the way.. I went to my likes, edit, down to "other pages you like" and then kept clicking unlike beside each page. I had about 1,100 likes and now it's down to about 560(in the "other pages" section"). However I tried again today, but when I went into edit, and then do the same process, only a few pages showed up, and I can't go down to "see more"? I don't want to go to each individual page and unlike it! Is there any way to get around this? Or can I only unlike a certain amount per day?
Orange: That's where I found out how to unlike initially, but I no more are appearing in the window that pops up when I click "other pages"