IIRC, Shatner stated in the SciFi Channel ST:TOS redo some years back, that they used his own kitchen stools for the Enterprise bridge stations.
LOL! I remember reading that the stagehands from STOS would raid the garbage of the other shows for things that could be used on their set.
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IMHO, there is no such thing as 'bad' Trek....some of them are just better than others.
Star Wars, on the other hand, was unwatchable after the first trilogy.