One involved source says, "There have been seven offers. We're going back and forth every 15 minutes."
Charlie's camp initially said they wanted a "2" in front of any offer -- meaning Charlie wanted at least $2 mil an episode for the next two years. The source claims Warner Bros. "has gone up [from its initial offer] more than Charlie has gone down."
We're told if a deal is possible, it's likely it will be done either tonight or tomorrow morning.
No comment from Warner Bros.
The CBS upfronts -- where the network announces its fall schedule -- are Wednesday.