Many TV programmes over the years have been inspired by nostalgia- Mama, Happy Days, The Waltons, etc. The key being to add realistic details as remembered by those who lived in the era described.
"Margie" seems to have been contrived by people who had nothing to do with the time and place shown. The stories are boilerplate family sitcom adventures that could have been set in 1961 just as easily. The period touches are based on a simplified Hollywood caricature, of the Raccoon coats and rah rah rah variety. Sort of like using "Good News" as a guide.
The synopsis above tells that "silent movie" titles were used to push the plot along. I have seen several episodes and thankfully, didn't see any. Perhaps they got tired of such a device quickly.
Margie wears a middy blouse all the time, which would not be exactly de rigueur for a teenage girl outside of maybe Phys-ed class. Her best friend wears a cartoonish "flapper" wardrobe, replete with head band and rolled down stockings. One might think parents would discourage friends like that. All of her beaus sport clothes from the Harold Teen collection. The clothes are pretty much the extent they went to in capturing the "roaring twenties", they threw in some appropriate cars and archaic bric-a-brac, too. They make 0.1 of an effort with the hairstyles, of both sexes. The humor is average, the characters are shallow and artificial. I noticed the direction came many times from Ezra Stone, who starred in his own teen-age radio sitcom series in the 1940's. Margie was a lead-in for, ironically, another period piece, "The Untouchables", and was sponsored by Crest and Prell.