[UPDATE BELOW]I just received this email from Patsy's in East Harlem:
Patsy's is celebrating its 76th bigger and better than ever! 90¢ steak, 60¢ pizza pies, 1¢ sodas. The NYPD and the FDNY will have a pizza-eating challenge. 118th Street and First Avenue will officially be renamed "Patsy's Way," and many other surprises. Join celebrities, elected officials, and others as we do this like never before.
After the phone number in the contact info is the directive to "CALL TODAY (Limited Seating)." They probably don't want a repeat of last year.
When: Wednesday, August 26, 2009; 11 a.m. to 5 p.m.
2287-91 First Avenue, New York NY (at 118 Street) 212-534-9783
Update: Gothamist reports and Cary (Passion-4-Pizza) comments here that Patsy's is not taking reservations. I have no idea why they put that in their email.