This isn't really a utopia, but some of the butterflies from this would certainly seem like it...
Ted Turner Buys Disney in 1980; Keeps Entire Company Whole
Knockbacks:
Because most of Disney's films and TV shows were made in color, Ted Turner's colorization problems are a lot less blatantly shown with the Disney library. After all, it would be utter filthy sacrilege to get Steamboat Willie a sloppy coat of paint.
The Disney Channel is launched in 1982, and had most of its schedule be made of movies for the first year of its life. The original programming would still begin in 1983.
Turner still buys MGM/UA, keeps the pre-1986 library, and acquires Hanna-Barbera. However, to stave off any anti-trust lawsuits, he sells the Warner Bros. library from AAP back to WB. Ted keeps the Popeye cartoons and everything else, though.
Touchstone Pictures and Walt Disney Television Animation are still founded.
Disney-MGM Studios has a sister park in WDW that is founded on the exact same day, and that theme park is an extended and expanded version of The Funtastic World of Hanna-Barbera, with the famous dark ride as its centerpiece. Meanwhile, Tom and Jerry and the Tex Avery characters become part of Mickey's Toontown.
WB buys the rest of MGM/UA in 1995, a decade after purchasing CBS in 1985. This means that Warner Bros. Animation is responsible for Terrytoons's Curbside revival in 1999 and the 1993 Pink Panther series.
Kids WB is turned into a 24-hour channel to compete against Viacom's Nickelodeon, and Turner's package of Cartoon Network, Disney Channel, and Toon Disney. This Kids WB channel airs all of WB's cartoon library, which unfortunately amounts to a slightly smaller amount than their OTL counterpart.
To clarify, Cartoon Network houses the Hanna-Barbera library, the classic Ruby-Spears shows, and the Popeye & MGM cartoons. Toon Disney airs the new Disney shows, like DuckTales and Gargoyles. Disney Channel airs a mix of everything family-friendly that Disney-Turner has under their belts. All three of these channels are under the Family tier of cable, and in the same package deal together.
The likes of Dexter's Laboratory, Johnny Bravo, and The Powerpuff Girls are made by Disney in this timeline, opting to merge HB's animation studio into Disney's television arm. Turner still has the distribution of the classics to themselves.
Hanna-Barbera Home Video is a division of Walt Disney Home Entertainment ITTL.
Cartoon Cartoon Fridays still exists, while Disney's One Saturday Morning operated on Disney Channel and Toon Disney in this timeline.
Speaking of which, Disney does not acquire ABC, choosing instead to focus on cable offerings. Instead, ABC is bought by Sony and houses more than enough Columbia-Tristar shows and all the stuff they made and acquired over the years. This does mean that Silvergate Media provides ABC's SatAM lineup starting in 2018.
Paramount keeps running UPN, since they don't own CBS in this timeline. As such, it never merges with The WB, and Nickelodeon's programs air there instead.
I'm sure I can think of more, but I'll let your questions do the talking for now.