Eventually, the show permeated my life. I became a bit obnoxious. That show you are talking about is great, but did it run for 12 seasons and four TV movies?

My obsession became a bit of a joke among the people I know. One day, a colleague dubbed me Angela Fansbury, and this time, an idea was born: I started an Instagram fan account a few days later. Every day for almost two years , I posted screenshots of my favorite scenes from the show, until I ran out of content. These days I keep it going by reposting old content for fun.

Eventually my enthusiasm began to rub off on my husband, who has never been a fan of crime shows but started watching “Murder, She Wrote” on his own. It was a chance for us to share a genre I loved — we would often talk about the silly plotlines and the wild ways in which Jessica would catch the killers. (In one episode, she impersonates the sister of a murdered brothel owner and winds up running the brothel herself during the investigation.) We’ve even traveled to Washington just to see Lansbury in a play, and have begun watching her old movies, like the Disney feature “Bedknobs and Broomsticks.”

How did I miss out on her earlier work? Can I blame my parents for this? (My mom, who’d wanted me to watch “Murder, She Wrote” with her when I was younger, is amused by my 180-degree pivot. She doesn’t remember any of the plotlines, but I still like to discuss episodes with her as I rewatch them.)

One of my favorite episodes came late in the series, right before it was canceled. In the 12th season, “Murder, She Wrote” moved from Sunday nights to Thursdays where it aired against “Friends.” The series, which had never ranked outside Nielsen’s Top 20, dropped to 67th place. The writers had their fun, though — the 16th episode of the season, “Murder Among Friends,” featured Jessica solving a murder on the set of a television show called “Buds.”