Every "Star Trek" episode and film featuring Earth, whether in the past or the characters' present day.
The list does not include episodes featuring holographic or illusory versions of Earth or the planet's appearances in opening credits.
Every series has featured Earth in at least one episode. Twenty-one episodes of "Enterprise" feature Earth, more than any other series. Since the planet only appeared in flashback in "The Magicks of Megas-Tu", "The Animated Series" is the only one in which the regular characters are never depicted visiting Earth at any point.
Of the thirteen films, only "Insurrection" and "Beyond" don't feature any scenes set on or near Earth.
"Picard" Season Two is the only season of any "Star Trek" series to feature Earth in every episode.