[Marsh.]

Originally Posted by Oliver_W

I'm pretty sure it was changed after filming, apparently to a)fit Remembrance Sunday b)to develop Yaz more before the ending c)to be closer to the last time we met Yaz's family.

Where did you read this?

I just checked and 'Demons of the Punjab' and 'The Battle of Ranskoor Av Kolos' were filmed together in the last production block.

If that's what you're referring to, the show is never filmed in broadcast order.