Marx Brothers appeared, sometimes with Chico and Zeppo caricatured, in cartoons starring Mickey Mouse, Flip the Frog and others. In the "Airwolf" episode 'Condemned', four anti-virus formulae for a deadly plague were named after the four Marx Brothers. In "All in the Family", Rob Reiner often did imitations of Groucho, and Sally Struthers dressed as Harpo in one episode in which she (as Gloria Stivic) and Rob (as Mike Stivic) were going to a Marx Brothers film festival, with Reiner dressing as Groucho. Gabe Kaplan did many Groucho imitations on his sit-com "Welcome Back, Kotter" and Robert Hegyes sometimes imitated both Chico
First appearance a much lower 5.5 ("fine minus") sold for $956,000 in 2016. Shortly after the record-breaking million-dollar sale of "Action Comics" #1 in 2010, a copy of "Detective Comics" #27 featuring the first appearance of Batman was sold for $1,075,000 in a Heritage auction. Several factors determine the value of a first appearance. Note: All values are according to ComicsPriceGuide.com and are for editions certified by the Certified Collectibles Group (see below): While seemingly a simple concept, determining the first appearance may be complex. The following are instances in which a character's first appearance may be difficult to determine: Note: All