Season 1 & 2 on blu-ray were selling in a Sainsbury's "two for £25 offer" and S3 is available from Amazon US site.

brian

Main: G65, MD600 Sooloos, MC200 Roon Core, MS600, 210, 218, UHD722, DSP5200SE, DSP5200HCSE, M6 & DSW.2
System 2: AC200 MS200, WiiM Pro+, M6.
Other: DSP5000 (96/24v1), DSP3300.