While browsing youtube for Aikikai clips, I came across this wonderful clip showing ground work that is very similar to Judo/BJJ movements from Sensei Masatomi Ikeda, 7th DAN, Aikikai Hombu. I was very happy to see these techniques expressed and demonstrated. I thought I would share this and would like to hear what others think.
Similar to judo? It's the standard Judo katame waza lesson: yoko shiho, kami shiho, ushiro kesa, tate shiho. I was taught the katame waza that way.