Gaffer Tape said:
Eh, for my money, I'd go with "The Changeling." Same story clocking in at half the time, and at least the characters have something to do besides look at things, although that bit with Uhura is damn silly...
That episode was pretty traumatic for me first time I saw it as a kid. OMG! That thing killed Scotty! ;)
People presume TMP was rehashing The Changeling, but the concept of V'Ger came from an unfilmed script written for Roddenberry's "Genesis II" series. That show never made it past the pilot.