Naturally, as censorship is the subtext of many, you need to be aware that some will contain strong language and/or explicit imagery, so consider where you're viewing any of these, being mindful of younger students in particular.
I did a simple 'BBFC' search on YouTube; I've only looked at the first few results pages (so far) - if you come across any useful additions, please pass on the link as a comment.
Interview with a BBFC 'Examiner'/Censor
The BBFC's use of language is questionable, and Foucault/Fairclough would certainly recognise their attempts to control and define the discourse through changing the 'C' to classification from censorship, and re-naming censors 'examiners'.
Anyway, this is an interview with A BBFC 'examiner', Emily Fussell.
History of the BBFC Part 1
There doesn't appear to be a part 2; a fellow busy Media teacher created this.
'Ramblaholic' on Tesco withdrawing a DVD (Hospital) after complaints
A talking head vodcaster, he's not as libertarian as the MelonFarmers site, but still largely critical of censorship.
You can also find him here having his say on a 2014 BBFC report which suggested a tougher regime for horror.
VSC's BBFC and PEGI Training Video for Retailers
Another great example of the impact of digitisation! The BBFC have been increasingly open and made much more publicly accessible ever since James Ferman eventually stepped down, but I don't recall seeing this on their site!
Die Hard With a Vengeance (2009): The cuts to receive a 15
Cheshire Cats Studio: BBFC/MPAA/Bechdel Ratings are ... bad
Some strong language used.
I've only skimmed this so far; a panel discussion largely presented as a Flash animation, and clearly not in favour of the ratings systems! With 21k views, another useful example of the impact of digitisation?
GoAnimate Video on the classifications
Haven't viewed yet...
Video Nasties 1hour doc
**features strong, explicit material**
This is very useful, but is clearly intended for a mature audience, so caution!!!