Abe Sensei and his several uke knew quite well that they were putting on a show for a comedy/variety show.
Er... I've been to Abe's dojo, and trust me, the Ukemi that his students put on even without the cameras rolling would win the Oscar for overacting
I feel pretty comfortable with saying that because I got to see the reaction of one of his long time students reaction of my own stuff when we had a bit of private time. That kind of overacting just gets ingrained :-p