Some standup comedy news from the Mahaffey Theater this week: Cedric the Entertainer has moved his show there from Oct. 5 to Nov. 8. And impressionist Frank Caliendo will appear at the Mahaffey on Nov. 7. Tickets start at $39.50 and go on sale Sept. 6 at noon. Meanwhile, fans of improv comedy will want to line up for this one: Colin Mochrie and Brad Sherwood of Whose Line Is It Anyway? will perform live at the St. Petersburg theater on March 9. Tickets start at $29.50, and they'll go on sale Sept. 6.