I'm pleased enough to see that the Australian version of Ninja Warrior is rating very well. (We used to watch the Japanese version when it was on SBS.)
I don't worry about watching it every night, but as a Sunday night, family friendly time filler, it's pretty good.
On last night's episode, the rock climbers were all ridiculously talented; and on the last week's Sunday night show, the Brisbane parkour twins were also scarily good. (I noticed that their parents were not there - do they freak out about the routinely dangerous nature of parkour, I wonder?)
I think the show works because of the very practical nature of the athleticism on display, more so than watching a bunch of gymnasts flipping on rings, for example.
And finally - one thing I was noticing last night. If they get themselves into situations where they have to swing their legs to get momentum going, I kept on feeling like getting my legs moving in sympathy, too. It was a funny sensation.