July 5, 1973 (Charlie Brown sees Alfred E. Neuman, the mascot of MAD Magazine Ending of a storyline which was later adapted as the segment "Sack" in the 1983 TV special It's an Adventure, Charlie Brown) (Later appeared on the sides of the box containing a bobblehead of Charlie Brown in a Detroit Tigers uniform that was given out for free at the June 20, 2010 Arizona Diamondbacks-Detroit Tigers game in Detroit as part of the Peanuts 60th anniversary celebration. Schulz once admitted that this was his favorite story of the whole Peanuts series)