One of the Decepticon Seekers that Wheeljack and Bumblebee encounter reacts to their appearance with saying "Autobots!". However only Wheeljack can be seen (Bumblebee is inside of him), so he should have no way to know that there are more than one Autobot present.
There are several audio errors in this episode. The three Decepticon jets, seen in the first few minutes are not only colored differently from shot to shot, but we can see Starscream among them, talking in somebody else's voice. Brawn also has a different voice near the end of the episode.
Soundwave is at first seen turning into what looks like a lamp-post near the Autobots' base. It is never explained, nor even touched upon how nobody notices that one of the posts is missing when he leaves.
The narrator begins with, "many millions of years ago, on the planet Cybertron, life existed, but not life as we know it today..." yet most of vehicle designs are from 1980s, and Soundblaster is an '80s-style boom box with a cassette tape.
In the erroneous shot in which two Soundwaves are seen, the arm of the second one isn't completely drawn for a couple of frames, so instead of a hand, he has a huge blotch of gray paint extending from his arm.
When Optimus Prime takes over the controls from Jazz, Jazz seemingly flies out of his seat by himself (faulty animation). In the following shot, the controller is seen having a fully different shape than before, looking much like a pair of antlers.