Background[]
According to Johnny Walker of Northumbria University, ADB Video was an English company that existed (at least) in the summer of 1983.[1]
(1983)[]

Logo: Just a dark red "ADB" caption, in a bold and blocky text, on a black background.
FX/SFX: None.
Music/Sounds: None.
Availability: Walker mentions ADB advertising Fables of the Green Forest (Director unknown, 1978) and Tales of La Manca (Kunihiko Yuyama, 1980) as part of their “virtual childcare” range.[1]