Table:
0
A
B
C
D
E
1
Episode
First broadcast Denmark ( DR1 )
Official TNS Gallup ratings
First broadcast UK ( BBC Four )
Official BARB ratings
2
1
27 September 2009
1702000
19 November 2011
1248000
3
2
4 October 2009
1696000
19 November 2011
909000
4
3
11 October 2009
1479000
26 November 2011
1080000
5
4
18 October 2009
1677000
26 November 2011
863000
6
5
25 October 2009
1658000
3 December 2011
1090000
7
6
1 November 2009
1505000
3 December 2011
859000
8
7
8 November 2009
1575000
10 December 2011
1044000
9
8
15 November 2009
1609000
10 December 2011
902000
10
9
22 November 2009
1561000
17 December 2011
1085000

Questions and formulas:
Question: When was the first UK broadcast for episode 9?
Formula: LET(query1,SUMMARIZE(D1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,2)=9))
Formula2: LET(query1,SUMMARIZE(D2:D10,SUMX(A2:A10)),FILTER(query1,CHOOSECOLS(query1,2)=9))
Level: hard
Question: When was the first UK broadcast for the episode with an official TNS Gallup rating of 1575000?
Formula: LET(query1,SUMMARIZE(D1,SUMX(C1)),FILTER(query1,CHOOSECOLS(query1,2)=1575000))
Formula2: LET(query1,SUMMARIZE(D2:D10,SUMX(C2:C10)),FILTER(query1,CHOOSECOLS(query1,2)=1575000))
Level: hard
Question: When was the first UK broadcast when the official Barb ratings was 1085000?
Formula: LET(query1,SUMMARIZE(D1,SUMX(E1)),FILTER(query1,CHOOSECOLS(query1,2)=1085000))
Formula2: LET(query1,SUMMARIZE(D2:D10,SUMX(E2:E10)),FILTER(query1,CHOOSECOLS(query1,2)=1085000))
Level: hard