NEW YORK -- Fox News Channel has given its 7 p.m. Eastern hour on weeknights to opinion host Jesse Watters, whose star has risen at the network with the ratings success of “The Five,” where he is one of the regular panelists.Watters will remain on “The Five,” but will give up his Saturday night show “Watters' World,” Fox said on Monday.Fox's Martha MacCallum used to host a more news-oriented program at 7 p.m., but a year ago the network moved her to daytime when rival Newsmax began getting traction at that hour with host Greg Kelly.