There is a scene in Invasion of The Body Snatchers where a dog is run over in the street but the inhabitants of the town, now alien, show no emotion. Watching Rosemary & Thyme is a somewhat similar experience. Our heroines set off on a gardening assignment, witness some intrigue, someone dies, you don't care who, it's not important, it's really not important, puzzle is solved, everybody has tea... Agatha Christie looks like Ian Rankin in comparison.
There are many shows that follow this same formula but rarely have I seen any quite so banal. Judging from it's rating on IMDB it would appear to be quite popular, a score of eight out of ten is more than respectable. Looking more closely however you realise that this is the result of just over 100 votes, and thus about as reliable as those beauty advertisements that tell you 83% of women noticed an improvement. Perhaps it's dullness is what has enabled it to survive this long. The chloroforming effect of watching an episode ensures plenty of viewers for whom the advertisements really will be a wake up call.