Gowasu recorded Cus, Murichim and his companions dancing a few hours before the Tournament of Power in his planet in order to get tons of views on GodTube.
Roh later mentions to Sidra that he learnt about Frieza from GodTube, saying that he can destroy planets without flinching.
There actually is a GodTube in real life made for Christians.
In the manga, the event Gowasu shows Zamasu on GodTube is how Zamasu comes to learn of Goku.
The concept of GodTube is based on the real life internet broadcasting video site, YouTube. Gowasu even claims that he wants to be a "GodTuber", which would be the equivalent of a YouTuber in real life.