What's the song name of the backround music playing in the majority of the wiki videos?
My guess is gonna be Devimon's theme from episode 14 of Season 1...
Found it recently by chance. Full name of it is Digimon Adventure OST#19 - Aku no Theme (Theme of Evil)
You'd have to ask the wikia corporation, the wiki itself didn't make those videos.
What do you think?