As I've Said Before, Barry, I'm Over the Moon

Why do sportsmen say “As I’ve said before” so many times in interviews? Is it because they’ve just given five consecutive interviews and they think it’s going out live? In fact, interviews go out on different channels in separate bulletins! They’re probably bored giving the same interview again, but it doesn’t matter if they’ve said it before. So Kevin, Freddie, Frank, Jamie, Rickie and co. please stop saying “As I’ve said before” over and over again.