Get the complete Season 2 Blu-ray (often £12-15 used) or the Series 1-3 box set (£25-30). Avoid paying more than £10 for just this season.
Dialogue (crucial for crime drama) is clearer, with less compression. The ambient sound (wind, waves, distant traffic) in episode 2’s exterior scenes has better dynamic range. However, lack of 5.1 is a missed opportunity. the bay s02e02 bluray
(varies, but commonly 5037115416238 for the complete Season 2 set – includes both episodes 1 & 2 on one disc) Get the complete Season 2 Blu-ray (often £12-15