20th Television Animation/Logo Variations
From the Audiovisual Identity Database, the motion graphics museum
Family Guy (The Fatman Always Rings Twice) (2021): The logo is in black-and-white to fit the episode's theme.
Futurama (Season 11) (2023): The "2" in "20th" is replaced by a "3", much like the 20th Television and 20th Century Fox Television logos from the previous seasons.
The Simpsons (A Mid-Childhood Night's Dream) (2023): As with the preceding Gracie Films logo, the fanfare is played on a piano. This is the first time in the show's history that the logo has an alternate take on the theme alongside the Gracie Films logo.