Joan Rivers disses Jay Leno, calls his show a sleep aid.


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Joan Rivers thinks Jay Leno's new time slot is a great sleep aid and a boon to Midwest farmers

Granted, she's had a 23-year fight with "The Tonight Show," dating back to 1986 when she got her own talk show on Fox and Johnny Carson banned her from his show.

And Leno continued the ban during his 17-year run.

So maybe she has some call to be all bitter and twisted.

But at the TCA this week, she slammed Jay with this crack:

"I think it's brilliant that Leno is at 10 p.m. because America can get bored more easily and go to sleep earlier. When was the last time you heard, 'Did you hear what Leno said last night?' It will be nice for the Midwest because their crops will be greener."

BTW, in case you don't ever want to mistakenly TiVo it, Rivers was promoting her new TV Land show "How'd You Get So Rich?" And if she hadn't made headlines with her Leno crack, how would anyone have known about her new show?

Keep reading to see Joan slap the you-know-what out of Kathy Griffin at the Comedy Central Joan Rivers Roast, airing on Aug. 9.

Looks like Jay got off easy!