I believe I am missing something here, what's Endless Eight?
A controversial arc in the second season of
Haruhi Suzumiya. The same episode, depicting the SOS Brigade's summer vacation, is repeated, with different clothes and angles (so new animation every time)
eight times.
Eight. Times.
The point is that the crew is trapped in a recursive time loop of those same weeks, and it occurs untold thousands of times without anyone except the robot-alien girl knowing what's going on before they break the loop. In fact, the alien girl knowing those
countless loops causes her to go kinda nuts later on.
The problem is, the audience had to go through all eight of those episodes, each time hoping for, you know, a
new episode in this new season. The audience went into revolt, the animators nearly did the same, and it turns out that the creator of the series had told the anime crew to only devote one or two episodes to that arc.
I have a message from another time...