The mental health one

ITV - Britain Get Talking​

These films ran for one time only on ITV, filmed to look as though they were a direct continuation of the previous broadcast - same cast, same outfits, same location, everything. 

The ITV News one came in the context of several months of catastrophic events in the news (war, pandemics, climate change). 

The Emmerdale one came in the context of an ongoing abortion storyline, as well as the continuing fallout from the US Supreme Court's decision  to overturn Roe vs Wade.

And the football one played out moments before ITV's broadcast of the Community Shield, an event watched by millions every year.