[Neil Jones]

You would think now shows are almost all destined for repeats or streaming they would make an alternative edit of the ending as a matter of course, although most shows get around it by referring to "next time" rather than anything more specific.

Back in the day it was customary to say something like "Join us for the Krypton Factor grand final next Monday at 7", as anything that disposed of it in that slot would have been known about well in advance like covering some football or something - or it was something unforeseen in the news that happened that warranted kicking it out, though that itself was very rare IIRC.

These days though? I think it said in one of the producer handbooks floating around that the networks discourage the whole "next Monday at 7" thing as there's no guarantee it'll go out in that slot. So "Next time" seems to be the next best thing, now we have the likes of iPlayer where you can burn through a whole series in one go.