TMZ Live: Harvey Attacks Nancy, Joan Attacks Harvey

Today on "TMZ Live," Joan Rivers and Harvey battled it out over the Casey Anthony verdict ... after Nancy Grace had the audacity to say she "KNOWS" Casey is guilty.

And Harvey and Charles take on child advocate Susan Moss -- a Nancy Grace screamer -- who claims at an extremely high decibel level the jury botched it.

TMZ Live Harvey Attacks Nancy Joan Attacks Harvey :: 0706-rumble-tmzlive-3

TMZ Live Justin Bieber Alleged Battery Mike Tyson Sounds Off :: tmzlive-download-podcast-graphic

(0:00) IT'S ON ... Harvey starts off by RIPPING Nancy Grace for attacking the jury in the Casey Anthony trial.
(4:45) Watch out Nancy, Harvey's just warming up...
(7:40) Joan Rivers is on the phone! It's about to get NUCLEAR!
(10:30) The gloves are OFF! Harvey and Joan are knee deep in a shouting match. Special thanks to our delay button.
(14:50) Finally, Joan cracks some jokes about Nancy and Casey ... and everyone is friends again.
(17:50) Harvey compares O.J. and Casey's respective jury.
(20:10) Family attorney Susan Moss -- who blasted off while on Nancy's show last night -- is on the phone. Get ready for round two!
(24:00) Harvey rips Nancy and Susan for creating a "lynch mob" mentality ... discouraging people from wanting to be on a jury.
(27:04) Harvey and Susan are going toe-to-toe ... which involves FAR LESS curse words than were in the Joan bit.
(34:00) Casey's attorney pops champagne after the trial -- bad move?
(37:00) Why isn't the prosecution taking more heat?