EXCLUSIVE

NeNe Leakes, who became famous as a truth teller, will now decide who's telling the truth on primetime TV, and Betty White's gonna help her.

We've learned NeNe will be one of the stars on the reboot of ABC's "To Tell the Truth," once a huge '60s game show.

The premise of the show ... 3 contestants will try to convince NeNe, Betty and a third panelist that they invented something, discovered something or whatever. Two of the contestants are impostors and one is the real deal. The panelists ask questions to figure it out.

Anthony Anderson is the host.

It's a big move for NeNe, who wanted to break out of reality TV, even though primetime is riddled with reality. No air date has been set.

Fun Fact: one of the panelists of the original "To Tell the Truth" was Allen Ludden ... Betty's late husband, who went on to host "Password."