Originally Posted by Matrixbeast (Post 527480)

There are also older Sentai that moved at a cheetah's pace, like Liveman, that threw characters at your face, threw ANOTHER set of characters at your face, threw the villains at you, and then threw the heroes at you after the villains wrecked a city in the span of a single episode.
Like Suzu said, it's more to do with what the writer wanted, not just the age of the series.

That being said, there are more "Older" Sentai that had better beginnings than newer ones (The pacing of the series as a whole is something entirely different, though. Liveman's hyper speed start is met with an incredibly slow slog of episodes afterwards).

Originally Posted by EpsilonX (Post 529316)

I haven't seen every series so I can't say for sure, but I haven't seen an "older" series that shows a mecha in the first episode, only "newer" ones.