1.Hello everyone, I am honored to be here today to conduct this interview.
2.Good morning/afternoon/evening, ladies and gentlemen. I am very pleased to be here today to interview (Interviewee's Name).
4.Good evening, everyone. I am here tonight to interview (Interviewee's Name), who is a very talented and accomplished individual.
5.Hello everyone, I am honored to have the opportunity to interview (Interviewee's Name) today.