I think that the title sequence plays as well on the familiarity that comes from repeated viewings and that the irony and humour implicit in the series is foregrounded in the title sequence. We know that it's just an egg, an orange and coffe beans, a ...
I agree with Todd that the show is Meta-textual in its presentation and reflects society. However, I'd add that the reflection is perhaps less back to the early 60s as it is a reflection on our current longing for the 'simplicity' of those ...
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The title sequence plays as well on the familiarity
It holds up a mirror..