What if Monogram Pictures remained open?

The Monogram brand name was finally retired in 1953 in reality. But in this AU, what if Monogram Pictures remained open?

Changes

 * Monogram Pictures would've been later known as Allied Artists Pictures (1953-1979) and PBS Filmed Entertainment (1979–present)
 * the 1931-1979 Monogram/Allied Artists library would've been owned by PBS in May 1979.
 * original films distributed by YouTube Premium would've been made from 1979 to 1997 rather than from 2016 to the present.
 * Monogram Pictures would've been producing and distributing films from Nu Image, Alchemy, DEJ Productions and First Look Studios.
 * PBS would've made film remakes of films from Eagle-Lion Films, Mutual Film, Cinerama Releasing Corporation, Selig Polyscope Company, and Mascot Pictures since 2007.
 * PBS Filmed Entertainment would've be one of the major American film studios, along with Walt Disney Pictures, Warner Bros., Paramount Pictures, Columbia Pictures and Universal Studios.