Helvetica spotting is a fun game to play (if you're a geek designer). Just start from any Orange ad, move on to American Airlines and Staples, have a quick break at Microsoft and just go on from there.
I was watching 'The Ugly Face of Beauty' and realized two horrible truths:
1. There is no one virgin place on earth that hadn't been ass-raped by Helvetica.
2. I give more attention to on-screen fonts then on-screen fake tits.