Mary Jarvis seemed to have quite prominent nipples beneath her dress, for a show broadcast in 1952.

Don't any of you realize who Paul Tripp was?
He wrote and hosted a very important TV show in his time, called "Mr. I Magination" which was the "Mr. Rogers" of its time, combined with a bit of "The Neighborhood" of Mr. Rogers, which was an informative and "feel good" program for children of the early fifties... a formative and educational program which was way ahead of its time and a model for intelligent TV programming like "The Electric Company" and "Reading Rainbow" with Levar Burton...
See: https://en.wikipedia.org/wiki/Paul_Tripp
and:
https://en.wikipedia.org/wiki/Mr._I._Magination

good episode

The young woman at the beginning of the episode nags her father about giving the world the "true facts".
I was unaware there are any other kind of facts... outside of Washington D.C., that is...

Kinda cool.

Fun sci-fi adventure. I love the time-vest and the future "Geiger counter" (an oscilloscope with somewhat advanced features). I do wonder who wrote this story as the "teletime set" is very reminiscent of a device I read about in an Arthur C. Clarke novel some time ago.

An interesting point, the 1950s newspaper with "Korean truce negotiations stalled" and "Cost of living zooms up" headlines could have equally been written in a newspaper from 2012!

I concur with the previous reviewer who mentioned the obligatory Bunsen burner wasn't lit. That darned list of chemical formula just would not burn. Fortunately the doctor didn't notice this and thus did not think to pick it up off the floor! We can only hope that the cleaners on the evening shift finally disposed of it, thus ensuring the planet remained saved, phew!

The moral of the story appears to be for any goofy "basement-dwellers" to get out there and face up to life. But of course they should only do this after they have secretly saved the world, and not a moment before!

I did wonder though what became of Whipple's nagging sister? I guess after he got married, she finally had to go out and get a job herself, rather than continuing to rely on her brother's meager income (of which she was openly critical) or any possible "insurance". Serves her right for smashing the time machine up. :)

And yes it was refreshing to see the utopian optimisim of a future with "No wars, no diseases" etc.. After this concept became completely clichéd, most subsequent sci-fi painted a bleak future thanks to the inescapable evils of human nature. Things have somehow come around full-circle and again, this unexpectedly seems strangely refreshing.

Season 1, episode 41.
Original air date: 18 July 1952.
The world in 2052 is a pretty wonderful place - no wars, no poverty, no famines - but all humankind is about to be destroyed because of a small miscalculation in a scientific experiment a century earlier set off a chain reaction that will contamine the Earth with a lethal amount of radiation. With only hours before the end of the World, a 21st Century scientist attempts to send a message to colleagues a hundred years in the past to prevent the mistake using a 20th Century man`s new time machine.
Cast: Paul Tripp (Sam Whipple), Ruth Enders (Mary Jarvis), Theo Goetz (Doctor Jarvis), Joy Hathaway (sara) and Arthur Tell (Doctor Thome)
From IMDB.

Optimism always entertains.
Great idea.great acting.great execution.

This episode is a delightful story to watch, because it is so much like the DC Comics Sci-Fi anthology stories from the same time period. Perhaps things such as the Tele-Time Set may seem outlandish to people of today, but such were common themes in the comics. I am sure that many young boys really enjoyed this episode when it aired in 1952 because it seemed like a comics story come to life!

A lowly technician at a research center builds a time machine
in his basement.
Once in the future he discovers a slow nuclear reaction
started in the 1950s will soon make Earth uninhabitable.
Reluctantly he returns to the present to prevent it happening.
How convenient it's his boss who dooms the world!

PS: The propman forgot to light the Bunsen Burner!