Final appearance of Stretch Cunningham, not counting the Season 7 episode, "Stretch Cunningham, Goodbye", in which we see only his coffin.
Archie mentions Barney Hefner to Irene. Interestingly, Barney and Irene never appeared in any episode together.
Stretch tells Archie that the Jets tickets are "right on the 50-yard line, close enough to hear the bones break." Later, Irene comes by to borrow Archie's binoculars, because she's going to the game with Stretch. The Jets' home stadium at the time was Shea Stadium in Flushing, Queens which was built primarily for baseball, with a circular three-tiered grandstand and field-level box seats that rotated on tracks. In football configuration, seats on the 50-yard line would have been a considerable distance from the field, even in the lower box seats; Stretch is probably exaggerating, and Irene is right to bring binoculars to the game.