I'd be surprised (and not a little impressed) to emerge on the Dollytubs ledge and see this chap going by!
http://www.bbc.co.uk/news/world-europe-29413045
As shown only on the regional version of BBC1 - not quite five minutes long and probably little you've not seen before but nicely shot, especially the cattle trough.
http://www.bbc.co.uk/i/b016fmzx/?t=17m34s
Welsh speakers (and people who can read subtitles!) might do much worse than watch S4C at 9pm tonight for the underground show in Iolo Williams' new series Tir Cymru; this features parts of Ogof Ffynnon Ddu and Dan Yr Ogof among others, and includes the filming work of one Gavin Newman...