In the summer of 1987, game show broadcasts got thrown off because of the Iran Contra hearings. Sometimes the morning airing of "The $25,000 Pyramid" got bumped to 2:00 in the afternoon. In fact, "Pyramid" showed repeats for four weeks until the hearings were over.
"Super Password" was pre-empted once in May of that year, and they did tape a few four-day weeks to try to get back on track, but there would always be another pre-emption before those four-day weeks aired, so they'd still be off. They finally got caught up in August, after the hearings came to a close. I know that near the end of the run, news reports caused them to be thrown off schedule again. They had to tape a few six-show weeks to get back on track for the final two weeks.
Brendan