In the last year I re-watched TOS and really enjoyed it. Then I tried re-watching TNG. I had to quit. Not just the sledgehammer messages, but I realized there was only one person on that show that could act. I guess back in the day I was such a Trekkie I didn't notice the first time through.
While I was in Vietnam with the Marines, the only movies we got to see were projected onto the side of our GP Medium tents and we got Combat! (!) and Batman, that idiotic TV series.