Even for a sitcom, having only one storyline in an episode is very rare. This why 'The Guitarist Amplification' feels so bizarre next to the other Big Bang Theory episodes.
The Fight
What the episode lacks in variety it makes up in illustrating a milestone in Penny and Leonard's relationship--their first fight. For a show where the characters thrive in naivete, this is a fairly mature storyline, one that even brings out an interesting character facet in Sheldon. Turns out, Sheldon is pa...