It looks like the older Delta saw (36-320C) that I posted about earlier may have originally come with a splitter and kickback pawls according to the parts list that I attached below. I came across two other larger units (do not consider buying as they are way out of my budget) that also seem to lack riving knife / pawls. I assume that they are more popular with the smaller portable, big box store models.
Peter...splitters/riving knives were put on virtually all table saws since the mid-80's. Don't think you'll find a TS without one or the other manufactured after that. You may know a splitter is fixed on the insert or the table surface whereas a riving knife adjusts with the height of the blade because of where it is attached.
I have a very old Darra James 12" saw that has neither but I use a short fence to make sure there is plenty of room between workpiece and fence after the cut. I use fingerboards to hold the piece down and towards the short fence for safety and accuracy.
Good luck in your search...