This page contains trivia for "Truth and Advertising". Remember, trivia must be factual, provable, and it is always best to cite your source for not-so-obvious trivia. If you would like to dispute a trivia point, please discuss it in the article comments.
This is the second episode of the season to not feature an appearance by PC Principal, though he is mentioned several times.
This is the second time Stan and Kyle have been in a fist fight with one another, the first being in "Prehistoric Ice Man".
A pop-up for a Chevy truck appears while Leslie is talking to Jimmy about escaping. This is a reference to a series of Chevrolet truck commercials that ran from 1991 to 2004, which featured the song "Like a Rock" by Bob Seger.
Butters still wears a neck brace after attempting suicide in "Safe Space."
Tweek and Craig seen sitting close together at lunch, showing they are still essentially a couple as of "Tweek x Craig".
In the school newspaper room, a bookshelf that has some pictures and a fan can be seen in various shots. When Leslie is walking up to Jimmy after punching him and knocking him into the bookcase, the fan and pictures disappear. However, when she shuts the door and walks back to Jimmy, the pictures and fan reappear.
In every episode of Season 19, Bradley Biggle can be spotted in the background, much like the Visitors were in previous Seasons.