Thanks Kenny. No HD version at all, as you say. It's looking like the BBC haven't bought the HD rights.No mid week repeat either on BBC4.
Those figures are rather disappointing. Have you the numbers for S3 at hand. Spiral isn't as popular as the Scandi dramas but I think the last season did better than this.
actually, S3 overnights for the first 2 eps weren't much different:
s3e1 574,000 (2.7%)
s3e2 464,000 (2.4%)
perhaps we're just getting used to higher numbers for these shows!