1991 version of the logo with the 1992 copyright stamp.
1997 closing logo.
Note
Although Britt Allcroft Productions is an overall independent British studio, it didn't always release its titles on its own. It once had a deal with PBS to distribute both Thomas & Friends and its American spin-off, Shining Time Station, under its PBS Kids label, but all that happened during the television releases only, as Britt fully owns those titles on video.