Blanche from Corrie's wig is a shocker!
All the wigs on Corrie are pretty dreadful
I think Eileen Grimshaw has now got a rug as well
It just means that the actress can change their hair colour or style and the character stays the same so continuity is not ruined and they don't have to be in make up as long as everyone else.
The best (I mean so bad its funny) wig is the husband in Titanic especially when he is fighting with Kate Winslett the wig moves forwards and backwards between takes so much that sometimes his forehead is an inch high the next it's the size of the eiffel tower!