What annoys me most about many 'documentary' programmes on commercial channels is the way that, after the ad intervals, they endlessly recap everything they've just laboriously explained or demonstrated in the previous ten minutes. I know most of these programmes are made for those with only 2 brain cells and a short-term memory to match, but it's very tedious. Also, the tendency to create an elaborately-filmed section setting up the action at the start of a drama series, which is then endlessly repeated at the beginning of every subsequent episode.
However, it's very interesting to listen to old recordings and hear how the pronunciation has steadily changed, from 'BBC Received Pronunciation' to the present mix of accents and ways of speech. Especially when we're used to hearing an older presenter's voice nowadays, such as David Attenborough - there's a few minutes in his latest series, Seven worlds One Planet, with a clip of him recorded about 50 years ago, which shows this change very clearly. I suppose the only person who still speaks like that is the Queen, and possibly Jacob Rees-Smug.