http://officialfan.proboards.com/thread/489438/sheldon-cooper?page=2

Post by StuntGranny on 4 hours ago

To me, he's just like Steve Urkel. He started out as an entertaining character, got really popular, then they made him so over the top you just can't stand to watch him.

with ratings at an all time high I don't think most viewers feel he is over the top and annoying. I find him lovable.