The one hour version of “This Old Pyramid” aired 4 February 1997:
The original aired 4 November 1992:
The BBC Horizon equivalent (“The Pyramid Builders”), which used the same footage, differently edited, aired 22 February 1993:
Edited 2019-11-30 to remove a repetition.
Edited 1 time(s). Last edit at 30-Nov-19 17:46 by Martin Stower.