Put simply, Summerton Mill can be mentioned in the same breath as such children's TV classics as The Herbs, Ivor the Engine, Trumpton and Captain Pugwash without feeling silly - it really is that good.
It harks back to an age before children's TV was merely a series of extended toy commercials aimed at emptying parents' pockets at Christmas time - its about entertainment, not merchandising.
If you want to get a flavour of the series, then imagine a classic stop-frame childrens show like The Pogles mixed with a dash of "Creature Comfort"-styled humour.
The BBC dropped the series a couple of years ago (although it is still going strong in other countries) in attempt to "update" its image, replacing it with a load of "hi-energy" imported series from the US aimed at tartrazine-fueled, hyperactive infants. May they hang their heads in shame.