What happened to the Vic?

No I don't mean the explosion, that was obvious.

What I mean is. So they film episodes months in advance. So there must had been some kind of building work on the vic in the next 2 - 3 months. How do they do it? So yesterdays episode would had been filmed months ago, and everything was seemingly in the same place. The world of TV is magical. I was just wondering if anyone here could delve into this. Are there two sets?

I know for instance, Jack and Ravvi have been having to duplicate their workload as we decided on who Denise got with.

Sonia will just have to say the same lines again I guess for Toni and Julie (So pleased it was Julie!)

Just wondering how the set works in terms of filming schedule and continuity