Other videos I have come across
Giving credit to a few other videos I have viewed and really learned a lot from:
Gordon Waite and series of his mirror making videos.
Sky At Night video, How to Grind A Mirror with Simon Lang and Terry Pearce.
Telescope Making [31c3] speaker Emmanouil "Madonius" Kampitakis
Grind a 6in and 10in mirrors by Carlos Paris.
Astronomy Podcasts episodes 327, 328 and 329 with Fraser Cain and Dr. Pamela Gay.