I've noticed for a while that live video streams on giantbomb.com/chat have crushed blacks, meaning that dark greys are made black and blend in the actual black. It makes some games look way too dark and loses detail in the image. I noticed a previous week when they were playing Hitman 2 Halloween map.
However today is the first time I've tried the YouTube version of the live stream for Extra Life. Brad was playing Noita and I could immediately notice a difference. Please see the screenshot and you will see on the left is YouTube and there are dark grey details that are missing from the right side for the GB player.
(I also noticed that the YouTube stream had frame rate dips every now and then but that's a different issue.)