DA
That's it. It was never officially confirmed in advance. They just brought them back and they've never been stopped since.
Jez posted:
The Monday doubles were only ever supposed to be for 4 weeks in September 2002 to boost ITV's autumn schedules. ITV insisted that Corrie werent adding a 5th weekly episode yet they carried on with the Monday doubles. I think they took a break during the summer of 2003 when we went back to 4 episodes a week. But as far as I remember there was a double episode every week from September 2002 to about May 2003. Then in September 2003 they came back and havent moved since.
That's it. It was never officially confirmed in advance. They just brought them back and they've never been stopped since.