I was just thinking about "The Simpsons", and about the Flanders family, and something came to my mind: Ned Flanders called his boys "Rod" and "Todd", both names which rhyme to "God". Now, when you take the first letters of each of the names (with God first of course), you get "GRT" - "great" (without vowels). Is that some kind of subliminal message?
BTW, if you're interested in other subliminal messages in music, check out
this page. It's awesome (except for the Pink Floyd one, that's boring)!
Update: even more interesting stuff can be found
here.