PBS Newshour shows up with two stickers. The first can be had by checking in and mentioning something election-related. The second is a bit of a mystery as of yet but I suspect that it'll be available once the show is actually on the air at 10:00 PM EST.
Lastly we have a pack of stickers from the Travel Channel. The first two appear to be general fandom stickers that can be had for Liking/Checking-in on multiple Travel Channel items. The first seemed to pop after 5 likes on Travel Channel shows but the second remains a mystery and I've only seen it pop up in my subscriptions feed once so far. The last ten are single-check and 5-checks for their respective shows.
I'll keep updating the post below with the sticker images and their requirements as they're found! Unfortunately we seem to be having trouble with check-ins once again as all but one of the Travel Channel stickers have refused to pop the Fan-level sticker for me and the Sara Bareilles stickers seem to be having the same problem. As much as I love GetGlue, they really need to get their act together when it comes to the release of stickers because we haven't seen a release day in recent memory that hasn't had some kind of problems. The last one I can recall that went smoothly was the book fandom, and it still had issues. I'll be patient and see if they get it fixed, but this fan's patience is starting to wear a bit thin.