Intervision Alpha TV is a VHS logo from the early 80's that is very abrupt and very loud. It starts off with a blue background, then music that I would almost call chiptune plays, with the greek symbol alpha (α) being drawn slowly. After the symbol is drawn, the word alpha gets revealed at the same speed next to the symbol.
The loud part of the music stops and only the beeping and heartbeat-like sound plays in the background.
This logo is extinct because it is from horror movies shot in 1979, so you are lucky to find it on any VHS tape anywhere.
Medium to nightmare. Due to overly dramatic synth tune. However, it perfectly fits the tone of the films it distributes.
Music is 'Telex' by Derek Scott from his album 'Sounds Unusual'. The original song is no longer than this logo.