Table:
0
A
B
C
D
E
1
Episode
Broadcast date
Run time
Viewers (in millions)
Archive
2
" Episode One "
26February1972
24:40
6.4
RSC converted (NTSC-to-PAL)
3
" Episode Two "
4March1972
24:30
9.7
RSC converted (NTSC-to-PAL)
4
" Episode Three "
11March1972
24:05
8.3
RSC converted (NTSC-to-PAL)
5
" Episode Four "
18March1972
24:21
7.8
PAL 2" colour videotape
6
" Episode Five "
25March1972
24:53
8.3
PAL 2" colour videotape
7
" Episode Six "
1April1972
25:24
8.5
PAL 2" colour videotape

Questions and formulas:
Question: What episode had 9.7 million viewers?
Formula: LET(query1,SUMMARIZE(A1,SUMX(D1)),FILTER(query1,CHOOSECOLS(query1,2)=9.7))
Formula2: LET(query1,SUMMARIZE(A2:A7,SUMX(D2:D7)),FILTER(query1,CHOOSECOLS(query1,2)=9.7))
Level: hard
Question: What date was an episode broadcasted on that had a run time of 24:40?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="24:40"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,C2:C7="24:40"),2))
Level: medium
Question: What episode had a run time of 24:53?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="24:53"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,C2:C7="24:53"),1))
Level: medium
Question: What was the archive for the episode with a run time of 25:24?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="25:24"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,C2:C7="25:24"),5))
Level: medium
Question: What is he archive for the episode with a run time of 24:05?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="24:05"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,C2:C7="24:05"),5))
Level: medium