Nothing says Disney like crossover and that’s what the Season 4 finale of Shark Tank (1.9/7) saw last night on the last Friday of the 2012-2013 TV season. Dr. Heinz Doofenshmitz of Disney Channel’s Phineas and Ferb showed up to give the Sharks a pitch last night on the Disney-owned ABC, though they weren’t really biting. With an online dating service looking for some investment plus a grilled cheese franchise in the making too, Friday also saw the entrepreneurial reality series rise. Shark Tank was up 6% from last week’s show and up 19% from its Season 3 finale on May 18, 2012. The 9 PM Shark Tank finale was both the highest rated show of the night and the most watched with 6.57 million tuning in. Preceded by a special Shark Tank (1.2/5) in the 8 PM slot where Happy Endings sat this season, the finale of the unscripted series was followed at 10 PM by 20/20 (1.5/5) The ABC newsmagazine show was down 12% from its May 10 show among Adults 18-49 but up 25% the final Friday of last season. ABC won the night among adults 18-49 and, with 5.720 million watching, total viewers.