I find it exceptionally sloppy & lazy of the BBC to have some episodes of programmes on iPlayer, where the continuity announcer from the live broadcast of the programme you're watching (the voiceover person who tells you "... and in ten mins on BBC2, is Newsnight" etc, etc...) is left on the soundtrack, either just before the opening titles or just after the end credits.
It's not on ALL programmes, and even then, not on ALL episodes; it's seemingly random.
Imagine it to be the difference between buying a DVD of a series or recording it off the TV with a VCR; had you bought the DVD, you'd have no continuity announcer blabbering all over the soundtrack telling you the news is beginning on BBC2 in ten mins! It's not like they can't fix this - prerecorded programmes come on separate disks/tapes and are "clean" (only contain the soundtrack for that programme).
Imagine buying a pack of postcards that had already been written, stamped/franked and posted...
Lazy! Lazy!!... or is there A GOOD reason?