This is a Japanese comedy show where a group of professional comedians are invited to compete for a million yen ($10,000). Each of the ten contestants must bring 100,000 yen ($1,000) and are then stuck in a room together for six hours.
The main rule is you can't laugh... actually you can't even smile because that counts, too. If you show any sign of laughter you will get a yellow or orange card. And if you get a red card (usually on the third laugh), you're out.
The last man standing wins. In later seasons they add some new stuff like "zombie time" where comedians who have lost can come back into the room for a brief time to try to get revenge.
It can be extremely crude and weird, but it's pretty funny. Most of the comedy still works even with the language barrier, but if you don't like subtitles you probably won't like it. It also looks like Amazon has a Mexican version of the show. I'd love to see an American version with American comedians, could be really interesting!