Written and Compiled by SonicRacer, wisp20071st Warning
(1976-1979)
Warning: We see on a dark blue background the warning text in white. The 1976 Paramount Home Video logo precedes this.
FX: The fade-in transformation from the logo to the Warning.
Music: None.
Availability: Seen on Betamax releases and a few VHS releases with the 1976 Paramount Home Video logo.
Scare Factor: None
2nd Warning
(1979-1989) 

Nickname: "Acid Trip"
Warning: On a background of changing colors (Green, Yellow, Red, Pink, Purple, Blue, and green again) appears the warning text in white in large lettering.
Early Variant: There is an early variation where the text is smaller and in a different font (notably Bauhaus 93), and in yellow instead of white. This was used until 1984.
FX: The changing colors.
Music: None.
Availability: Seen on all releases from this era.
Scare Factor: Low.
3rd Warning
(1987-2005)
Warning: Transforming from the zooming-in of "FEATURE PRESENTATION" from the then-current Paramount Home Video logo of the era, we see a wallpaper with the Paramount logo all over it. We see the standard Warning in a different font than the previous ones, similar to one used on Jeopardy.
Variant: In 1995, the font became somewhat more modern looking.
Color Backgrounds:
- 1987-1989: Bright purple/white gradient.
- 1989-2002: Dark blue gradient.
Bylines:
- 1987-1989: A Gulf+Western Company
- 1989-1995: A Paramount Communications Company
- 1995-2005: A Viacom Company (in the Viacom Wigga-Wigga font)
-
Variants: - One variant had the background in violet and had more text as well. Seen on the DVD release of Black Sheep, as well as the 2001 DVD of Wayne's World.
- There is an extremely rare variant on demo tapes that asked the viewer to call a certain telephone number.
FX: The transformation from the "FEATURE PRESENTATION" zoom-in to the Warning.
Music: None.
Availability: Seen on all videos from this period.
Scare Factor: None, unless you want to count the transformation from the "Feature Presentation" to the Warning.
4th Warning
(2002-)
Warning: On a dark blue background, we see the Warning text, in English on the first screen, and Espanol on the second screen.
Variant: Sometimes, the background is violet.
FX: None, unless you want to count the tranformation from English to Spanish.
Music: None.
Availability: Current on all Paramount releases from 2002-present and DreamWorks releases from 2005-present.
Scare Factor: None.