not ready for prime time

from Jargon File (4.4.4, 14 Aug 2003)
not ready for prime time
 adj.

   Usable, but only just so; not very robust; for internal use only. Said
   of a program or device. Often connotes that the thing will be made
   more solid {Real Soon Now}. This term comes from the ensemble name of
   the original cast of Saturday Night Live, the "Not Ready for Prime
   Time Players". It has extra flavor for hackers because of the special
   (though now semi-obsolescent) meaning of {prime time}. Compare {beta}.
from The Free On-line Dictionary of Computing (8 July 2008)
not ready for prime time

   Usable, but only just so; not very robust; for internal use
   only.  Said of a program or device.  Often connotes that the
   thing will be made more solid {Real Soon Now}.  This term
   comes from the ensemble name of the original cast of "Saturday
   Night Live", the "Not Ready for Prime Time Players".  It has
   extra flavour for hackers because of the special (though now
   semi-obsolescent) meaning of {prime time}.  Compare {beta}.

   [{Jargon File}]
antiflux / dictionary / not ready for prime time
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