I want to download the square dance on the computer, and then put it on the USB flash drive Oh, and then watch it on the TV, how to get ah, please solve!

It is necessary for your TV to support USB Oh

Nowadays, the TV is sometimes pitiful,

Some TVs support USB flash drive, but only support JPEG, GIF, picture format

You should pay attention to buy the kind of TV that supports playback of video when you buy a TV Oh.

If your TV doesn't support it, there's no need to change your TV. You can buy a DVD for a small amount of money, and then burn the square dance to a CD-ROM and watch it on your TV.