According to the description you provided, this early education film may be a children's TV program Tots TV made in Britain, which was broadcast in the early 1990s. Tots TV features three dolls, Tom, Tilly and Tiny, and their friends. These characters usually take risks in a magical world and teach children some basic knowledge and skills through interaction and exploration.

This program was very popular in the early 20th century and the late 1990s, which may be what you described. If you are looking for this program, you can search Tots TV for more information, or find relevant video clips to verify whether it is consistent with your memory. I hope this helps!