It can be a bit of a challenge to think of the right thing to say when finishing up a show you’ve been on for over a decade, as Jon Stewart will do tonight when he ends his run on “The Daily Show.” Luckily, he can take a look at how other longrunning hosts have done it on their own shows. Take a look at how other hosts have said goodbye over the years. 1. Conan O’Brien
2. Oprah Winfrey
3. Jay Leno
4. Johnny Carson
5. Craig Ferguson