Don't look for Joan Rivers to be a guest on Jay Leno's new talk show anytime soon.
The potty-mouthed comedienne ripped Leno and his upcoming 10PM series on NBC during a public press junket on Wednesday.
"I think it's brilliant that Leno is at 10 p.m., because America can get bored more easily and go to sleep earlier," Rivers told reporters as she promoted her new TV Land cable TV show
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