system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: On TV, why is closed captioning always "provided in part by" something, IE a certain company? Why isn't it just part of broadcasting standards that closed captions need to be present by default?
gpt
They are required on all broadcasts in Canada between 6am and 12 midnight, although most broadcasters do them 24 hours a day.  The sponsorship is just an ad like any other, some companies just want to tie their ad to something positive like accessibility.