I seem to remember that the scan line trick on the Beeb was to save a bit of memory. The 32K Beeb was a bit constrained so it used every trick it could to save

I seem to remember that the scan line trick on the Beeb was to save a bit of memory. The 32K Beeb was a bit constrained so it used every trick it could to save it. However its processor was twice as fast as the C64 so it had an advantage for 3D graphics. Of course because the C64 had more free RAM it was able to hold a lookup for some calculations so get around the slower CPU. I love the balancing of those trade offs back in the day. I believe that the “ultimate” 8 bit Elite was the co-processor Beeb version which had 64k on the copro and the hosts shadow memory plus a faster 6502 too. Hidden line removal! In. Real. Time. Just imagine that if you can.