Public exclusion from the Crown Court must be very rare; it could conceivably happen in cases involving national security, I suppose. No rape case should involve such a concern. You may find, rarely, that a witness in the trial is shielded from view.
The old TV series Crown Court was nowhere near reality. Lawyers regretted that their own cases didn't have dramatic music or only lasted less than an hour a day but in instalments, or always got adjourned at the most dramatic moment ! The old senior prosecutor at the Old Bailey, Edward Cussen, could produce the last by timing his killer question exactly, so it was the last thing the jury heard before an adjournment ; that left them an hour, or overnight, to be thinking about it and the defendant's inadequate answer.
Modern TV representations of Crown Court trials are a nearer, but the barristers wear new, clean,white wigs; the more experienced they are in real life, the greyer these get; there is some misuse of terms sometimes (e.g. witnesses do not 'take the stand' here, because there is no stand), and the examination and cross-examination of witnesses is sometimes more theatrical than legally correct by rules of evidence or professional procedure (or tactically). Otherwise they give a fairly good approximation.