I really hate the way radio hosts on CBC,or at least the ones on CBC Radio One's "As It Happens" - say goodbye to their guests. It sounds so smarmy and smug. "Buh-bye".. Reminds me of that SNL skit with David Spade as an airline flight attendant with someone else going "BUH BYE".
I can't think of a better more genuine way to let the caller go, but it just irritates me every time I hear it. What can you do I guess.