I then started watching Salamander, As the first 2 episodes were on catch up I thought that I wouldn't bother recording them. What a mistake, presumably the same idiot was putting the programs on again this week and failed to put on episode 3, but managed episode 4.

It isn't at all surprising really, iplayer is awkward and clumsy to use, and could only have been thought out be an idiot.
How many brain cells do you need to work at the BBC....none by the looks of it.