Good spot, it's missing from the website. It's showing on the NOW TV box and mobile for me so if you have any other devices you watch on might be worth checking those.
PS if you're not using the website to watch on post back with which device so they can check that as well!
Yes, sorry about this. We raised it to our technical team yesterday who have tried to re-load the episode. As it's still missing we're in contact with them now to try and figure it out. We'll hopefully have it sorted soon and will post back here once it's done.