According to Washington Post, Kim-Moon meeting was a historical event:
In 2016, North Korean leader Kim Jong Un threatened to strike the residence of South Korea's president with missiles, foreshadowing mounting tensions that have kept the world on alert ever since.
So, when Kim stretched out his hand and smiled at South Korean President Moon Jae-in on Friday, the scene could hardly have been more surreal.
The historic moment was the result of months of negotiations and pressure by both China and the United States, even though it remains unclear how far North Korea is willing to give in.
The same article mentions a small detail related to how this event is seen inside North Korea:
The summit was not broadcast live inside North Korea, and it remains uncertain how much of the friendly scenes North Koreans will be able to see.
Not broadcasting such a historical event involving the Supreme Leader seems strange.
Question: Why did North Korea not broadcast internally an historical event such as Kim-Moon meeting?