Turin Shroud documentary

Channel 4 is showing a documentary on the Turin Shroud tonight at 9 pm, part of the Secrets of the Dead series:

Series in which forensic science is used to investigate history. The probity of the Turin Shroud, popularly believed to have covered the body of Christ, has long been subject to scrutiny. This programme reveals the latest developments in theories regarding its age following restoration work in 2002 by a Swiss textile expert.

The Channel 4 web site is also advertising a live chat with the producer/director Alex Hearle after the programme, 10 pm.

Update (23.53): watched this programme tonight. Didn't add much of interest. A textiles expert claimed that the stitching on the shroud was of a kind only found previously at Masada and never found in medieval relics, but that was covered in about five minutes and in insufficient detail. What I'd have liked to have seen something on would have been the Jerusalem shroud discovered by Shimon Gibson two years ago, which -- if I remember correctly -- contrasted radically with the Turin shroud. If there is anything new worth discussing, then that is it.