James Williams, of NewsTalk Florida, spoke to Martin Clunes, who was at home in England, and the article is posted at https://www.newstalkflorida.com/featured/martin-clunes-talks-about-series-nine-of-doc-martin-that-starts-thursday-on-acorn-tv/
I like what Martin says in response to this question by Williams.
“Williams: You know if Louisa had a Facebook Page under the relationship tab it would likely read “Married but it’s complicated. How has the relationship between Martin and Louisa changed in series nine?
“Clunes: (Laughs) Yes, Martin would not have a Facebook Page but Louisa would no doubt. Well, I think that things are better between them, it is far less confrontational and much more centered on the family.”
Martin seems to be saying that the series is returning somewhat to the tone of the early series, where Louisa’s character wasn’t so harsh.
Acorn TV is a streaming service featuring British (and beyond) programming. You can sign up and watch programs 24×7. It’s possible to sign up on Amazon, per this web page: https://www.amazon.com/gp/video/offers/signup/?ie=UTF8&benefitID=acorn&ref=DVM_PDS_GOO_US_AC_C_A_BRb_1_ACORN%7Cc_261575225279_m_WC3Xci7N-dc_s__