Last time I saw was in the Turbo movie, when Tommy took off his helmet. After Zedd took over, the MMPR took off their helmets inside the Command Center all the time, even in Zeo.
As for the actual episode...the Zord battle was really, REALLY quick. In fact, many of the episodes so far have seemed really rushed.
What exactly is JDF doing, anyway? Filming a movie or something?
As for the helmets, I dunno if they can be taken off. Their clips aren't as obvious as it used to be.
Spubman: Defender of the Way of the Spub's Thingy of the Time Being:
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