I haven't seen it and will see if I can.
I've got a background when I've had to read things like accounts of torture and various child abuses elsewhere in the world - things other people I know simply can't read past the intro paragraph (which is fine - nobody should have to).
If you watched something like this programme sounds it was and are horrified, please turn your horror into something useful. So many parents have no idea what actually goes on online. They still think the danger comes from a dodgy man offering a kid sweets in the park (or equivalent).
Talk about the programme, if you can, don't discuss details that are too difficult for you, but the general things. Tell everybody you can.
These fuckers only get away with what they do because parents think their kids are just chatting, just gaming or "just" whatever. They're completely oblivious to the possibilities - or have heads in the sand. It's obviously nobody's fault if these guys are acting predatorily, but we make it easy for them by not paying attention to what our kids are up to online.
They also thrive in the darkness because we're too afraid to turn in the light. Nobody wants to think about or discuss this. That's PERFECT for the guys who do this. It's their ideal situation.
Again, it's not parents fault for these assholes doing what they do. But, we can make it a little bit harder for them. And any obstacle is better than none.
I know a lot of the abuse also happens abroad and is streamed or videoed, so it doesn't help the children abroad. But if one thing can be done, it's better than nothing.