The New Earth Republic was formed by refugees from Earth.
During the civil wars of the 100th century, several arkships left Earth to find a better place to live to get away from the chaos and destruction. They went off-track nearby the Ant Nebula due to an area of strange particles which stopped them from leaving. Communication with the rest of humanity was impossible. Despite this, the area they found was rich in supplies and minerals and they prospered. Originally there was to a minimalist lifestyle since the empire suffered from a distinct lack of resources, but now they had them in abundance and were allowed to enjoy luxuries no human had enjoyed for years.
Later, the New Earth Republic was so successful that boredom was the only problem. At one point, one of the scientists of the New Earth Republic discovered the television messages sent from original Earth, which had only gotten there thousands of years later. The scientist spent time trying to restore the slightly degraded messages before others pitched in to help, and new techniques restored the television messages before they were deemed watchable, and the television itself was reinvented.
The citizens of the New Earth Republic latched onto this new source of excitement and based their entire society on the Earth from the past. The Reef Station One was specially designed to pick these faint transmissions. Along the way, the culture in the New Earth Republic became similar to that of 20th century Earth though with advanced technology. Along the way, the New Earth Republic came to develop their own television programs.
With the obsessions into television, the Republic shaped its culture accordingly.
In the 101st century, one of the leaders of the New Earth Republic, Walter J. Matheson, attempted to bring the Nestene Consciousness to the New Earth Republic to shake things up. Though he was finally stopped, he caused mass destruction on Reef Station One with Autons and animated plastic products. After this invasion, the New Earth Republic lost interest in television and started sending sleeper ships to the Wolf-Lundmark-Melotte and Andromeda galaxies. When the Junta, an army formed from the colonies of Earth, invaded the New Earth Republic in the 102nd century, they were beaten back easily.