Which show is noted for having episodes that were only 4 minutes long and ended with a cliffhanger?

Crusader Rabbit is noted for episodes that were approximately 4 minutes long, which distinguished it in the landscape of early animated television. This show was among the first animated series specifically created for TV, paving the way for the format of shorter episodes. The structure of these brief stories, combined with frequent cliffhanger endings, made each episode highly engaging and prompted viewers to tune in for the next installment, reflecting a narrative technique that was effective in maintaining audience interest. This was particularly innovative at the time, as it played into the serialized format popular in other media, such as comic strips and adventure serials, setting a precedent for many future animated series.