As an aside (and hence filed under something a bit different) I'm a big fan of How I Met Your Mother, the US TV sitcom that is beginning to replace the ubiquitous replays of Friends.
One of my favourite episodes is inevitably burger related, and revolves around Marshall, who once had the best burger in New York but was never able to find it again.
The episode in a nutshell:
The group eating in a bar agree to try the burger. It arrives and they all say how good the burger is, except for Marshall, who says it's just 'OK', seeing as he had the best burger in New York eight years ago when he accidentally finds a burger joint and the best burger in New York.
When he rushes back to tell Ted about it he forgets where it is. And so Marshall has tried every burger joint he can in an attempt to find the place. This prompts the group to troop around New York in search of this elusive burger joint.
Watch How I Met Your Mother: The Best Burger in New York now!