I'm watching a roast for Flava Flav on comedy central.   I've never really heard of the guy, but it seems like every time there is a roast on, the same people are roasting.   Greg Heraldo, Jeff Ross, Lisa Lampineli, Jimmy Kimmel, etc.  

Most of the time is spent insulting people in the audience (mainly the other roasters).

I'll give you they are funny, but aren't all the people supposed to be friends of the person being roasted?   They are all celebrities, but it seem like quite a diverse group of them that I've seen.  I remember watching them for Pam Anderson, Hugh Heffner, William Shatner, Drew Carey, Chevy Chase and a couple more I can't think of right now.

Dean Martin's roasts were better.