As a promotional web series for an arcade game, it is not broadcast on traditional television.
The episode deviates from the main Capsule Corp Goku and Vegeta storyline to follow the . In a different timeline, a team of elite Time Patrollers—including the "Xeno" versions of Goku, Vegeta, Gohan, Goten, and Future Trunks—invade the Dark Demon Realm to confront Dark King Mechikabura . Super Dragon Ball Heroes Episodio 20
Complete episode guides and summaries are maintained by sites like Kanzenshuu . Super Dragon Ball Heroes Promotional Anime - Episode #20 As a promotional web series for an arcade