What was interesting to me as a parent was watching how in episode 4 we see the father mirroring Jamie's behaviour in episode 3. It's in so many subtle and more obvious ways.
The way that hour of t.v. in episode 4 is slow so that we can steadily watch the father and watch how closely his wife monitors his emotions so that she can step in to regulate them for him. She pushes her emotions aside to monitor his because his potential to blow up and get violent verbally or physically is potentially dangerous for her and her daughter.
Jamie switches from screaming to apologising in episode 3. Then we see the father apologise in episode 4 for spilling the water from the bucket after blowing up at his wife. He apologises for the wrong things. His son does the same.
His father hasn't shared with his wife what he saw Jamie do on the video and she says he shuts down and doesn't want to talk about it. In the same way Jamie hasn't spoken to any of his family about how he and his friends have been bullied at school - spat on and ridiculed in real life and online.
Episode 4 is so fascinating to me. Watching each person's individual roles in relation to each other in that regular family. Lisa especially monitoring the emotional state of her parents, so that she can intervene to soothe them or distract them to calm them down. She does the same with Jamie on the phone and still claiming Jamie as theirs. The parents think they've raised their kids the same. But they themselves have gendered roles in the family. The kids have mirrored their mother and father respectively.