Bart Simpson BARTMAN Mint Sealed Poster AVENGER OF EVIL "WATCH IT, DUDE" (21" x 31") 1990 Bart Simpson BARTMAN Mint Sealed Poster VINTAGE 1990 Date on Poster--From The First Full Year--Debut Episode was December, 1989 Large Poster Measures 21 Inches Wide x 31 1/2 Inches Tall BARTMAN--AVENGER OF EVIL--WATCH IT, DUDE. Great Gift Idea!