There's a topic for the DS Quotes Slideshow (the one on page 1 of this board that features one quote from an ep that originally aired on the given day) on the current Current Talk board:
A New Slideshow Is Coming
However, there isn't any main topic for the History Slideshow (the one that appears on all the other pages of this board and features four moments from each ep that originally aired on the given day). But if that's ever the slideshow anyone wants to comment on, simply start a new topic on the current Current Talk and name it History Slideshow.