英文關鍵字
connection
lost
smpte
screen
distortion
test
transmission
malfunction
analog
capture
bad
bars
broadcast
broadcasting
broken
channel
communication
display
distorted
effect
error
failure
interference
maintenance
message
monitor
noise
obsolete
old
pattern
poor
reception
problems
retro
signal
smtpe
static
stripes
technology
television
tv
vintage
weak