The first of a five-part series imagining London if the Nazis had won the Battle Of Britain began and expectations were high.

American actress Kate Bosworth stars in the big-budget historical drama, based on the novel by Len Deighton and adapted for the screen by the Bafta-winning writers behind Spectre and Skyfall, Neal Purvis and Robert Wade.

Set in 1941, the much-anticipated show’s trailer was polished, and CGI was used to cover London’s landmarks in swastikas.

In fact, the whole thing looked pretty scary.

Some people had reservations though. The show does have a pretty similar set-up to Amazon’s alternative history thriller, Man In The High Castle.

It certainly started with a bang. Literally.

The Nazis had well and truly set up home in the UK, and we heard that even the World Service (gasp!) has been taken over to broadcast official messages from the Germans.

The resistance was still active though, and we were quickly introduced to them as one of their members shot a Nazi in the opening scene.

Buckingham Palace was half-collapsed, covered in swastikas, and it got people feeling a bit political.

After the initial shock of our main man Archer’s lady friend using a Nazi flag as some kind of post-coital cover-up, the detective and his sergeant had a good mystery on their hands, involving a dead body with bizarre injuries.

Once the proper dialogue had got under way though, people started noticing how gruff everybody sounded.

Was it all that stress-induced smoking? The Nazis had just invaded, after all, and there was no vaping back then.

Maybe it was the pollution from all those Nazi war planes casually landing on the Mall.

Or was there a shortage of cough medicine on the black market?

And since we’re talking about Nazi occupation, there were ‘Allo ‘Allo references crying out to be made.

People just really wanted to hear what the actors were saying without having to whack the volume up.

Maybe whispering, much like the detective’s flag-wearing secretary Sylvia, was part of the resistance movement.

Despite basically working for the Gestapo, our torn protagonist reminded some viewers of the lovable Bruce Wayne. Or at least Christian Bale’s famously croaky portrayal.

Our husky-voiced hero followed clues that led him to a potential experiment outpost in the countryside.

But worse, the resistance was getting closer to the only family he had left, leaving viewers on a huge, slightly muffled cliffhanger.

You’ll have to tune in next week, and turn on your subtitles, to find out what happens next.