I think the tone of the show has certainly changed over the years, because it's really, really hard to do something different when you have a show going on as long as this has.
The voice doesn't take a lot of effort now, but in the beginning it was hard to try to find a voice. The one I settled on was just easier to do for a half-hour.
If something is to hard to do, then it's not worth doing.
I think Mr. Smithers picked me for my motivational skills. Everyone always says they have to work twice as hard when I'm around!
I'm not a bad guy! I work hard, and I love my kids. So why should I spend half my Sunday hearing about how I'm going to Hell?