Stuff that’s still hard to do (Falcon-9 Telstar-19)

Launch
Stage-1/2 sep, Stage-2 ignition
Shroud/fairing deploy
Stage-1 re-entry burn (no boost-back burn, landing on barge)
Stage-1 landing (cuts out, as usual) standing upright
Payload deploy
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Another 1962 cultural ref (Telstar, by the Ventures)