The introduction to the second-season episode, "If Memory Serves", uses archival footage of Nimoy as Spock from the unaired pilot episode "The Cage", and the third-season episode "Unification III" uses archival footage of Nimoy again from the Star Trek: The Next Generation episode "Unification II". The latter appearance is a holographic recording from the records of Jean-Luc Picard, and is shown to Michael Burnham after she travels to the 31st Century, a time in which the Romulan and Vulcan peoples remember Ambassador Spock as the cause of their reunification on the planet Ni'Var, the newly renamed Vulcan.
the introduction to the second-season episode "if memory serves" uses archival footage of nimoy as spock from the unaired pilot episode "the cage" and the third-season episode "unification iii" uses archival footage of nimoy again from the star trek the next generation episode "unification ii" the latter appearance is a holographic recording from the records of jean-luc picard and is shown to michael burnham after she travels to the 31st century a time in which the romulan and vulcan peoples remember ambassador spock as the cause of their reunification on the planet ni'var the newly renamed vulcan