Hi Mac
You must be older than I thought if you can remember back to that Skippy episode! Just for historical sake it was me who flew that helicopter! Our company provided the Bell47G3B1 and a pilot to stand in for Tony Bonner, the actor. The landing was done in the river near Terrey Hills and as you say young Sonny had no trouble making a running landing on fixed floats!
As you saw it on TV, it must be possible!!!