In Stargate it’s canon that Earth is further along technically because Earth was kinda forgotten about. Other human civilizations have been artificially kept back as slaves. There were a couple of them though that figured out how to advance anyway like the Genai, and they did have 50s level TVs.
In Stargate it’s canon that Earth is further along technically because Earth was kinda forgotten about. Other human civilizations have been artificially kept back as slaves. There were a couple of them though that figured out how to advance anyway like the Genai, and they did have 50s level TVs.