I live in Liverpool.There was a poster supporting Christopher in one of the bars in Mathew Street two weeks ago... can't remember name of bar,,,, it's sort of place that would be lively with karaoke and under-age drinkers on payday. I surmised that it must be a place where Christopher once graced the stage and/or his relatives have a connection with the place. I have not seen a single poster anywhere else relating to him though.
I can't say I pay much heed to local radio (it's pretty brain-dead) but I do hear it in the gym a few times a week. and I've not heard anything relating to Christopher at all.
All in all I can see no evidence of Christopher being especially popular in Liverpool. I do remember previous contestants like Marcus, Rebecca and Eaton Road having noticeable support, love and promotion on the streets of Liverpool though.... it's blindingly obvious Christopher has nothing like they had.
Personally, I suspect Christopher's vote comes from older viewers across the nation who probably have records by Des O'Connor, Matt Munro and Max Bygraves in their collections.