The Wizard of Oz DVD I had bought for Tony had been worn out from frequent plays and by Tony's mishandling of it.
I had been looking for another copy of the DVD around Wuxi till I remembered that I had in fact made a copy of the DVD to show to my students. I found that copy at school and took it home.
Tony, as I type this, is watching the film very attentively. Having seen the movie at least fifty times, and then hot having seen it for six months, Tony is watching the film with wide-eyed attention.
I wish I could have taken a video of him dancing along with the Tin Man dancing scene.