I do like those lady birds.
Re cold weather etc I suspect the last market M is aiming for is the UK or Europe. I don't know about how people would receive it in the US.
I think Nigella gets away with swishy hair and home cooking because people will watch it for innuendo & amusement ( and I think latterly she has not used her own kitchen - I think she did in the very first series) I think the Martha Stewart days of complete cooking / house / decorating things may be over , but again not American so don't know .
I am old but nothing beats a bit of Delia - proper cooking with no gimmicks.