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. 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.