I notice you're asking about and mentioned "openh264" — but these two things are unrelated.
I can explain how it works, licensing (BSD), use in Firefox/Chrome, binary distribution, and integration with FFmpeg. young sheldon s05e19 openh264
That likely means a pirated video file used OpenH264 for encoding, not that the episode is about codecs. I notice you're asking about and mentioned "openh264"