How did the television picture tube (or cathode ray tube) affect the 1920's?
Even though the television picture tube (cathode ray tube) was around, it was in its beginning stages of development. The technology really was not there yet. It did not have a great affect on society in the 1920's but radio did. People listened to the radio for entertainment and information. Families would gather around the radio and listen to comedy shows, etc. and have a good time doing so.
Later, when the television did become popular, it was very popular just like the radio was. The difference was that images could actually be seen instead of imagined.
In my opinion, the cathode ray tube did not really affect the 1920s to any significant degree. The technology was around at that time and was commercially available, but it did not have a great effect because there was almost no broadcast television during that time. Therefore, it was not really able to affect people's lives.
The cathode ray tube really started to affect people's lives in the 1950. This is when TV became widely available to regular people and when a great deal of programming started to be broadcast, at least in the United States.