The survival rate of episodes is very hit-and-miss: the first edition currently known to exist in the archives is episode 126 from April 1965, with the next, sequential, run of installments comprising 496-500, aired over one week in November 1966. Thereafter, some years are represented by no editions (or merely one), with some surviving only as edited compilations, monochrome film copies, or off-air audio and home video recordings. A complete run only appears to exist from October 1980. Additionally, some pre-transmission trailers from 1964 were kept, as were sections of 1960s film inserts discovered in early 2008.
The March 1975 civil ceremony wedding of a fairly anonymous motel owner to a businessman - Meg Richardson and Hugh Mortimer - at Birmingham Register Office sees the city centre thronged with well-wishers; similarly the later affirmation/blessing at Birmingham Cathedral has a packed congregation, outside police supervision and reporters. Whilst in reality this reflects the interest of the general public in the show and its production, in narrative terms it is completely nonsensical.