adjusting
background
button
buttons
change
changing
channel
choice
choosing
chroma
chroma key
concept
control
copy space
decision
device
digital
display
electronic
entertainment
equipment
finger
green
green screen
hand
holding
infrared
isolated
key
keypad
male
man
media
multimedia
pointing
power
press
program
push
remote
screen
surfing
switch
technology
television
thumb
tv
video
watching