How often does this happen to you?
About once a year, I find myself exposed to some rendition of Gilbert & Sullivan's "I am the Very Model of a Modern Major General," and that's it for me for the week. It's in my head, breaking out of my voice box, hummed incessantly as I go about my business for about a week.
Last year it was in a Classics class I was TA'ing for at UConn.
This year it was on my replacement show for "The West Wing," "Studio 60."
On another note, good news: although "Studio 60," the only show I expect to watch on a regular basis (and am loving so far), doesn't even go on the air until an hour after my bedtime Monday nights, on weeks when I fall asleep on the couch and wake up 20 minutes into the show, I can catch the parts I missed the next day on NBC.com and don't have to wait for reruns months later.
I am the very model of a Sorkin-Schlamme show addict.