Chevalier Theatre welcomes comedian Eddie B for his first Medford appearance. Eddie B is comedy on steroids. The Houston native is single-handedly changing the comedy game, tapping into the minds of teachers around the world and selling out major arenas throughout the country with his highly successful “Teachers Only Comedy Tour,” which was an outgrowth of his series of videos entitled “What Teachers Really Say.” Tickets are $25 to $65 through the Chevalier Theatre website/Ticketmaster. Tickets also may be purchased, free of online ordering fees, at the Chevalier Theatre Box Office, which is open on Fridays and Saturdays from noon to 6 p.m., as well as two hours before every Chevalier Theatre show.