All the characters were designed by Ivor Wood, and the series was produced by his company, Woodland Animations.
They were adapted by Eric Charles and illustrated by Steve Augarde, who was also responsible for the artwork and music in the children's series Bump.
Bertha was created by Woodland Animations, who also produced the shows Postman Pat, Charlie Chalk and Gran for the BBC.
Episodes were written by Eric Charles and Stephen Flewers, and designed, produced and directed by Ivor Wood, co-founder of the Woodland company.
At some point in 1985, Bertha was featured on a Marks and Spencer (St. Michael) exclusive VHS release called Cartoon Favourites along with The Family-Ness, Ivor the Engine, Bagpuss and Pigeon Street.
In 2011, Classic Media released a DVD entitled Fun with Friends: Volume One containing one episode of Bertha.
The DVD cover claimed that the show was made by "the makers of Postman Pat and Thomas and Friends."
These were very similar to the Postman Pat photobooks, where the front cover would be an original illustration and all pictures within the book were images from the TV programme.
All tracks are written by Bryan DalyTracks marked with an asterisk (*) did not feature in the TV series.