BBC digital TV series sale from $4 (80% off) on Google Play & Amazon Video

Number of BBC digital TV series are on sale on Google Play Store. Amazon appears to have matched most of them.
Need to check the Play Store app, however. Sorry, I can’t find the full list anywhere else. But these are a few of the cheaper seasons.
Orphan Black
Season 1
HD Digital $5
https://play.google.com/store/tv/…YQGlLNH3lI
https://www.amazon.com/Orphan-Bla…B00BVYLBP2
Luther
Seasons 1,2,3,5
HD Digital $4.99
Season 4
Hd Digital
HD Digital $3.99
https://play.google.com/store/tv/…Y&hl=en_US
https://www.amazon.com/Luther-Sea…B0045XR7O0
Fawlty Towers
Seasons 1 or 2
HD Digital $4.99
https://play.google.com/store/tv/…A&hl=en_US
https://www.amazon.com/A-Touch-Of…deo&sr=1-1
The Paradise
Seasons 1
HD Digital $4.99
https://play.google.com/store/tv/…E&hl=en_US
https://www.amazon.com/Episode-1/…eas&sr=1-1
Scott & Bailey
Seasons 1 or 6
HD Digital $4.99
https://play.google.com/store/tv/…c&hl=en_US