Thanks to Teletoon rips of the Transformers Prime Episode 21 are now on You Tube, before they are shown on US or Canadian TVs.
The episode is basically Grimlock's New Brain from the original Transformers cartoon series.
Wilst the Autobots and Decepticon's battle it out over one of the Cybertronian capsules, containing unknown knowledge, Bulkhead is enfused with the "living knowledge" giving him unrival scientific knowledge, with a cost.
With Megatron after Bulkhead's new found knowledge, the Autobots are after a way to save Bulkheads mind.
Lots of nice one-liners, mainly focusing on Bulkhead and Miko (two of the better characters), with Decepticon input from Breakdown and Knock-Out