I couldn't agree with some of the other reviews I see here more!
While I've found most of the episodes of the season to be delightfully more engaging and generally less elementary then those of previous seasons, this episode stands head and shoulders above all the others.
The way they build up to the final run of Cassini images and footage successfully delivers an emotional jolt that took me completely by surprise. I found myself leaning toward the television as they ramped up the song "Emotional" by Ludovico Eniaudi in the background. The wonderfully emotional engagement they Manage to create in those few minutes left me feeling awestruck as it built up to a fevered pitch.
Bravo! Truly!