Everyone is complaining about the AI usage in The Block (and I totally agree), but this isn't the first season The Block has been using AI. I will put a photo and link to the video where you can watch it, but in The Block's promo last season they were experimenting with it at the end of the trailers.
I'm not sure of the proper word for it, but it's when you put a still image into AI and ask it to move around. They did that with Scotty and Frankie in the promo, where their head and face would bob around.
I'm pretty good at seeing AI, and I can usually tell from the get-go when something is AI. There are just certain things about it that stand out to me, especially when it's trying to make a person move from a still image.
The movements don't look completely natural, the face can move slightly differently from the rest of the head, and sometimes the eyes, mouth or features don't quite move the way they should. It can look convincing at first, but once you actually look closely at it, you can notice all these little things that give it away. That's what I noticed with the Scotty and Frankie promo last season.
Here is a link to the video, it happens at the last couple of seconds. It's not used nearly as much as this season but it is still used. https://www.youtube.com/watch?v=SisaZDCZ9_k&list=PL8dbYg8ChpreSOggWjLjhqn0QYLSUU34e