I can explain why Ringo Starr was the first narrator of this show:
Back in the 1960s, The Beatles recorded the song called "Thomas the Tank Engine". The first opening theme tune of this show is based on this song. Therefore, producers of this show decided that Ringo Starr should be its narrator. And they made the opening theme tune of the show based on The Beatles' lost song. Unfortunately, The Beatles' version of "Thomas the Tank Engine" is nowhere to found. It was supposed to be released, but it was lost before its planned release. It was discovered in 1984 by producers of this show and they used this for the opening theme tune. However, it's unlikely that The Beatles' version of "Thomas the Tank Engine" will be ever released.
And that's the reason why Ringo Starr was the first narrator of this show.
Back in the 1960s, The Beatles recorded the song called "Thomas the Tank Engine". The first opening theme tune of this show is based on this song. Therefore, producers of this show decided that Ringo Starr should be its narrator. And they made the opening theme tune of the show based on The Beatles' lost song. Unfortunately, The Beatles' version of "Thomas the Tank Engine" is nowhere to found. It was supposed to be released, but it was lost before its planned release. It was discovered in 1984 by producers of this show and they used this for the opening theme tune. However, it's unlikely that The Beatles' version of "Thomas the Tank Engine" will be ever released.
And that's the reason why Ringo Starr was the first narrator of this show.