The commentary also doubles as a synopsis, and is therefore reproduced in full:
The visitor arriving at this training centre is Ted McGee. He was a trainee on the centre's first course and, like many others, he's come back to see the warden.
He was able to start work down his pit after only three months in the industry because Easington, in County Durham, is a residential training centre. By living at the centre, the boys are able to get a hundred hours more training than is possible by the non-residential method. This form of training is turning out popular with the boys and their parents, so the centre is being enlarged to take in over a hundred pupils.
Ted has a lot to say to the warden. While he was on the course, he was particularly interested in work on the haulage engine. Because of his ability, the warden, Mr Stephenson, strongly recommended him for this job, and now he's come back to say that he's been put on the haulage engine at Harton pit.
Four o'clock. Lectures over for the day, and out on the field the referee's whistle has blown. Physical exercise is an important part of the training centre's programme. Those lads who have spent the day in the training gallery come back from Easington Pit. They join the footballers in the shower before sitting down to their meal.
In the dining room, the welfare officer is having an early tea, before he goes off to open up the games room. He knows it's not only lectures and physical training that's important, it's the fact that these lads work and play together in a miniature community.
Easington is one of the first residential training centres for boys. There will eventually be others like it all over the country. It's on the personal interest of the warden that much of the success of this new venture depends. Ted McGee is only one of many lads who believe this system of training is a good idea. Well - he should know!