How are these features actually
used when using the Smart TV?

You can use the long grab gesture with watching TV to quickly
surf through channels or control the volume.

TV Gesture Book

LONG GRAB GESTURE

Clench your hands as if you’re holding a fist for this gesture.

Gesture Image - Clench your hands as if youore holding a fist for this gesture.

This is a flash content. videos or images are on the TV screen.