Is it 'Low' or 'Lauw'?

Nice to see this movie has been a significant viewing experience for so many other people--whenever I happen to run across it like a few days ago (It seems to heighten the experience when I just sort of come upon it unknowingly while channel-surfing although I'm now thinking of getting the dvd since it occurred to me how long it had been since I had seen it) I can't help getting choked up like the first time I saw it "lo" these many years ago.

My question--Is anyone else curious why all (I think it's all) the townspeople pronounce his name "Lauw" (curiously the more accurate pronunciation) while the Tony Randall character himself insists on "Low"? Just something I noticed.