i do this too. or i turn it on and watch a scene again if i have missed some of the dialogue.
i sometimes have trouble making sense of something someone has said in real life, and ask them to repeat, only to hear the exact same indecipherable thing i "heard" the first time.
i always think of the Monty Python police station silly voices skit:
[youtube]http://www.youtube.com/watch?v=ZOqfPG1ohKw[/youtube]
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Now a penguin may look very strange in a living room, but a living room looks very strange to a penguin.