That of which Lost in Space is the epitome, Irwin Allen is mainly about creating silly-weird-looking aliens with misshapen heads and action, action, action, even if it never helps the plot and electronic machines that always explode when you touch them and when you don't. Lots of his shows and episodes are fun, but their mental maturity level is rarely above the six-year old and there were stories of trying to keep him off the set as much as possible to get things filmed without his goofy ideas, though they obviously came through even without his presence. Of course sci-fi, that should usually properly be called just "fi", since most of it's pure fantasy with no connection to real science, is heavy on the suspension of disbelief, but it's a major stretch to imagine that the inconceivably vast and huge Time Tunnel complex in the Arizona desert that would dwarf most American cities into tiny insignificance could actually be replicated in what amounts to little more than a Russian basement apartment!? Please! I know the Russians did some incredible things with the little they had, but this beggars belief and it only works because it's cool to see something that looks familiar to what we've already seen. Really a silly idea though I must say it works, hence the 5 rating instead of the 1 or 2 I was tempted to give it as with most of the episodes and most of Allen's shows, being plot less, characterless and generally just plain clueless, like most Americans of the time that proves getting to the moon wasn't about competent American ability but the brilliance of the select few that ran NASA at the time that is sadly no more.