none 

Statements about this table:
the episode that run for 18:00 have 6.7 million viewer
the episode with 6.6 million viewer be archive for 16 mm t / r
there be 7.3 million viewer for the episode with a run time of 18:00
the archive for the episode with 6.6 million viewer be 16 / 35 mm t / r
episode
broadcast date
run time
episode 1
14 september 1968
21:27
episode 2
21 september 1968
21:39
episode 3
28 september 1968
19:29
episode 4
5 october 1968
19:14
episode 5
12 october 1968
18:00
episode
viewers (in millions)
archive
episode 1
6.6
16 mm t / r
episode 2
6.5
16 mm t / r
episode 3
7.2
16 mm t / r
episode 4
7.3
16 mm t / r
episode 5
6.7
16 / 35 mm t / r