There they are, Optimus. Aurora Borealis, the northern lights!
7 seconds sound clip from The Transformers (1984) - Fire in the Sky TV Series.
You can hear this line at 00:07:56 in the DVD version of the movie.
Quote context
[...]
- But... where am I? This is not Cybertron.
- No. This is Earth, where you crashed many years ago.
- I am Megatron, Skyfire. Supreme leader of all Decepticons.
- We are on this planet to collect the energy we need to revive Cybertron and conquer the universe.
- And the Autobots are now our enemies.
- There they are, Optimus. Aurora Borealis, the northern lights!
- Indeed. Very pleasing to my optic sensors.
- And with this symbol, you, Skyfire, become a member of the exalted Decepticon forces.
- Hail Cybertron! And destruction to all Autobots.
[...]