I'd add "The Measure of a Man" too.The Romulan Republic wrote:One point regarding season two of TNG: If nothing else, watch "Q Who". It is a landmark episode which sets up the acclaimed, and pivotal, Best of Both Worlds two-parter.
"Skin of Evil" in season one might be worth sitting through too, in my opinion, if only to more fully appreciate the context of "Yesterday's Enterprise".
Honestly, if you're going to include "Skin of Evil" for context, I'd have you watch all this:
Encounter at Farpoint
Where No One Has Gone Before
The Big Goodbye
Datalore
11001001
Skin of Evil
Conspiracy
Where Silence Has Lease
Elementary, Dear Data
The Measure of a Man
Pen Pals
Samaritan Snare
The Emissary
Q Who [This one was moved.]
Nothing too rancid, but not just 2 episodes either.