Question

read the passage.
when heidi transformed televised football
on november 17, 1968, football fans across the united states sat glued to their
televisions. a close game between two top teams—the new york jets and the oakland
raiders—was being broadcast. when the jets pulled ahead with only fifty seconds
remaining, viewers went wild. but then, just as the raiders were bringing the ball across
midfield, the game disappeared from the screen! in its place, a previously scheduled
childrens movie, heidi, started playing. callers flooded the tv networks phone lines, but
it was too late. the raiders scored two touchdowns in the very final moments—
touchdowns that were unseen by all but west coast viewers. as a result of the
interrupted event, dubbed \the heidi game,\ television networks began delaying their
regularly scheduled programs until football games had ended.
what is the main, or central, idea of the passage?
after heidi interrupted a crucial moment during a televised football game,
networks began to delay regularly scheduled shows until football games were
over.
after heidi interrupted a crucial moment during a televised football game, the
tv network received numerous calls from angry viewers who were unable to
watch the final moments of the game.

Explanation:

The passage details the 1968 "Heidi game" where a children's movie interrupted a football game's final moments, then focuses on the lasting industry change: networks started delaying regular programs until football games ended. The first option captures this full central arc (event + its major consequence), while the second only covers a minor, intermediate detail (viewer calls).

Answer:

After Heidi interrupted a crucial moment during a televised football game, networks began to delay regularly scheduled shows until football games were over.