Western animation/A

A

 * A Kind of Magic: A French slice-of-live TV series about a family that deal with "magical" situations.

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 * Adventure Time: A series that, due to its large number of fantastic scenes (absurd), usually include themes GTS or para-GTS. Among his characters, there is a muscular semi-giantess named Susan Strong and a natural mini-giantess by default called Canyon.

Am

 * American Dad!: Sitcom series about a crazy agent of CIA who is father and has 2 children, lives with an alien and a speaking fish.
 * Amphibia:
 * Amphibia - SE2-EP02a: "The Ballad of Hopediah Plantar". The protagonists arrive in a "wild west"-like town in the middle of an arid desert, which both its buildings and its inhabitants are small. Throughout the episode, the protagonists must defeat a group of outlaws. Anne Boonchuy (female human protagonist), Half sister Ruth (female toad) and Mama Hasselback (female toad) take on the role of para-giantesses.
 * Amphibia - SE2-E16b: "Maddie & Marcy". Maddie's little sisters; Rosemary, Lavender, and Ginger all become giant after messing with one of her spells. later on, Maddie does the same to herself so she can juggle them in order for them to forgive her for not spending enough time with them.

An

 * Animaniacs: High budget animation series of Warner Bros., based on Looney Tunes rejected in the past. Katie Kaboom is metamorphosed giantess. This series has 8 segments with GTS scenes.

Ar

 * Archie's Weird Mysteries: Based on Archie Comics's characters, with horror/mystery stories.
 * Arthur: One of the most successful and long-lived children's series. Because it is semi-realistic, GTS scenes occur only in the imagination of the characters. There are 7 episodes with GTS scenes.

At

 * Atomic Betty* - S1-E17a: "Power Arrangers"''' A medusa-like villain named Nuclea becomes a mini-giantess when absorbing lots of power from the galaxy.