Sometimes there are just moments which are memorable/genius in tv shows, irrespective of the quality of the episode.
For me in TNG: 1. Picard in Measure of a Man when he wins the case at the end, asking rhetorical questions and bringing his argument to a climax. 2. Picard as an old man telling his daughter? about enjoying the present moment in The Inner Light. 3. Picard and Q discussing human destiny at the end of AGT. 4. Picard breaking down in Family. 5. Picard quoting Shakespeare to Luxwana Troi in that godawful cheesy episode with Riker and the Ferengi. 6. Picard being asked "do you know what you're doing" and him saying "no" in Time Squared. 7. Picard saying to Q that he does not want to be a science officer in Tapestry. 8. Picard saying "you will all become one with the borg" in BoBW part 2. 9. Q with his speech about the universe not being for the timid at the end of Q Who. 10. Picard screaming NNNNOOOOOO! in First Contact. 12. Data pwning everyone onboard the Enterprise in the episode where he's re-united with Nonien Singh. 13. Data owning everyone in Redemption. 14. Data's dreams in that episode where he starts dreaming. 15. Picard owning the tar monster in Skin of Evil. 16. Worf killing Duras after he killed Kehylr, excellent shot angle where he wield the bathleth and you know Duras had it coming big time so its kinda go Worf.