Some releases came with a free cassette or CD with narration by Ringo Starr taken directly from the episode's US audio.
Trouble for Thomas and Thomas Goes Fishing contain additional lines of narration that are not present in the episodes themselves. As a result, they are not spoken in the audio releases.
Harold appears on side 2 of the cassette despite not appearing in any of the stories.
Goofs
In Trouble for Thomas, the picture of Thomas and Edward in the shed is mirrored.
In Thomas Goes Fishing, in two pictures, Thomas is wearing Percy's tired face.
In Terence the Tractor, Clarabel is smiling when Thomas is stuck in the snow.