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.

Over on the CW, Nikita (0.4/1) wrapped up its third season. Recently officially renewed for a final six-episode run, the spy drama was up two tenths from last week with 1.08 million watching. Friday’s results were virtually even with the 0.4/2 Nikita received for its Season 2 finale on May 18, 2012 but down from the 1.47 million who watched last year’s ender.

Over on CBS, it was the Season 4 finale of Undercover Boss (1.0/4) at 8 PM. The workplace reality show took a hard 38% fall from its May 10 show and slipped from the 1.1/4 its Season 3 finale got on May 11, 2012. An Undercover Boss (1.1/4) encore at 9 PM actually bested the show’s finale among adults 18-49. A special 48 Hours (0.9/3) ended the night for CBS in the slot where the now wrapped Blue Bloods was this season. On NBC, it was news mag night on Friday with a two-hour Dateline NBC (1.1/4) followed by the now cancelled Rock Center With Brian Williams (1.3/4). The former was even last week’s one-hour airing while the latter was up 18% over its May 10 show. Fox was all encores on Friday.