Another Path - S2-E7
Continuity mistake: When the old Asian lady is hitting the Hulk using a wooden spoon, he is wearing brown pants. After escaping through the window, the Hulk is seen running on the street wearing blue jeans. But for the rest of his transformation he is wearing brown pants again.
Chosen answer: Bruce has always been the character's middle name. In the comics he is Robert Bruce Banner, here he is David Bruce Banner. Apparently the executives behind the show preferred the name David.