At first, I hated TNG, because the pilot, "Encounter at Farpoint" was so bad. But due to actually sitting down with my folks, the next episode I sat thru was "Yesterday's Enterprise", where the alternate universe of a war with the Klingons, but it was only an excuse to bring back Denise Crosby, to make a new role of her for the 'Sela' character (whom I think should have been the villain in "Nemesis" instead of a Picard-clone). Then, I thought the show was fairly good.
A couple episodes later, "Best of Both Worlds" aired. By far, the best season cliffhanger ever made (at the time). I was hooked until the series ended. The only episodes I have on DVD are the "Borg Fan Collective", of 10 episodes from TNG, Voyager, and one from 'Enterprise' (which sucked), relating to the Borg.