Doomwatch (1970)
Finally the series goes out on location with three excellent episodes -
The Devil's Sweets,
The Red Sky and
Train and De-Train.
Taking in perils like subliminal advertising (Far better than it sounds), sensory damage on the Cornish coast due to jet engine testing and pesticide destruction of wildlife. This first series has really upped it's game in it's second half and is now much anticipated viewing for me. Roll on this evening.