Proton Video

Proton Video is an American home video distribution company and is known for releasing all public domain films from Universal Studios, Paramount Pictures, Warner Bros., Metro-Goldwyn-Mayer and Fox Film Corporation/20th Century Fox. Proton also distributed all Pre-1947 Looney Tunes and Merrie Melodies cartoons and silent motion pictures from Brenon Pictures, Ukraine Pictures, Triangle/Robertson Cole/FBO, Goldwyn Pictures and First National Pictures.

it existed from 1982 to 1989, when it was bought by Blue Light Video (now Entertainment One Digiview).