You watch too much television. Evangelicals don't watch TV preachers and neither should you.
I quit watching television about 12 or 14 years ago, for the most part, and I couldn't stand to watch the TV preachers when I did watch it. But I am interested that you don't consider TV preachers to be evangelical, that gives me a slightly better impression of them. What about Pat Robertson, for instance? I have seen his face on TV.