The opening of "A Distant Echo" was featured in a special trailer that announced the return of Star Wars: The Clone Wars to an excited San Diego Comic-Con crowd in 2018.

This episode hints that both Captain Rex and Obi-Wan Kenobi know more than they let on about Anakin’s relationship with Padmé.

The battle on Anaxes is part of the “Outer Rim Sieges,” the final campaign of the Clone Wars first seen in Star Wars: Revenge of the Sith.

Anakin’s holo-call to Padmé was not a part of the original version of this episode. It was added as part of the series revival.

The poster seen in the barracks has the header “Space Battles” and features Y-wings in action.

Padmé is in an early stage of pregnancy during the holo-call. (The oblivious Jedi didn’t seem to notice.)

This episode gives us a glimpse of Wrecker’s workout regimen, which includes lifting a power droid with one hand while snacking with the other.

Techno Union foreman Wat Tambor was first seen in Star Wars: Attack of the Clones as part of the Separatist Council.

Skako Minor is the home of Techno Union and Skakoan people. This is its first appearance in animation, but it appeared before in the Marvel comic book Doctor Aphra #15.

The viewscreen Wat Tambor uses to taunt the Bad Batch is a similar technology to the screen used by the Trade Federation when contacted by Queen Amidala in Star Wars: The Phantom Menace.