none 

Statements about this table:
only 1 archive , only still an / or fragment exist , have a run time of 24:34
the only episode that have 8.4 million viewer be episode 4
episode 4 with a broadcast date of 24february 1968 have 8.4 million viewer
only 1 episode have 8.4 million viewer , and broadcast on 24february 1968
only still and / or fragment exist archive be when run time be 24:53
the broadcast date when viewer be 6.4 million be 24 february 1968
there be only 1 episode which have 8.2 million viewer
episode
broadcast date
run time
viewers (in millions)
archive
episode 1
3 february 1968
24:53
7.2
16 mm t / r
episode 2
10 february 1968
24:38
6.8
16 mm t / r
episode 3
17 february 1968
24:34
7.0
only stills and / or fragments exist
episode
broadcast date
run time
viewers (in millions)
archive
episode 4
24 february 1968
24:50
8.4
16 mm t / r
episode 5
2 march 1968
24:19
8.0
16 mm t / r
episode 6
9 march 1968
24:41
8.3
16 mm t / r