closed captioner
This function allows viewers to search for their favourite lines of any show that features closed-captioning.
For the hearing-impaired, he would like games manufacturers to include closed captioning in every game.
The closed captioning that came with her cable box does not always work.
It's hard for closed-captioning to pick up the inflections or the emotion in a song.
There are no alternative language subtitles or closed captioning options.

SMART Vocabulary: related words and phrases

Broadcasting in general
airplay
airtime
airwaves
audio described
audio description
carry
executive producer
ham radio
headline
interchannel
live stream
podcast
producer
scheduler
serialization
serialize
showrunner
slow motion
transmission
tune