"That's never happened before!" is the free space. This means you mark it as soon as you begin playing. Please do not point out every time it's said--literally everyone playing should have it marked immediately.

In order to avoid tons of people getting a bingo too soon, you must be present to see or hear each thing personally in order for it to count (no asking others if it happened or not). These are the only exceptions:

Someone somewhere tries desperately to defame Doctors Without Borders
Some joyless douche posts a "cringe" compilation that's mostly just harmless fun and dad jokes
Someone on the stream accidentally creates a new meme
A character gets named in tribute to someone
TASbot gets to do a bonus demonstration
Naming bid war includes a food (ie. "Arbys" or "Beefaroni") as an option
Donation counter reaches $3 million

Also note that by Discord exploding, that means like two dozen posts every second, one of those moments where the flood of text is so intense and fast that you can barely read a word of it and 10 posts are bumped offscreen in a fraction of a second.

Once you get a bingo, announce it, and then feel free to try for a second one! At least 1/3 of the fun of GDQ Bingo comes from seeing if you get to fill the whole card!