Table:
0
A
B
C
D
E
F
G
H
I
J
1
Season
# of Episodes
Timeslot
Season Premiere
Season Final
Peak Audience
Average Audience
Average Nightly Rank
Average Weekly Rank
Average Yearly Ranking
2
1
22
Tuesday 8:30pm
26 August 2008
24 March 2009
2067000
1904364
No. 1
No. 2
No. 1
3
2
22
Tuesday 8:30pm
30 June 2009
24 November 2009
2185000
1881000
No. 1
No. 2
No. 2
4
3
22
Tuesday 8:30pm
29 June 2010
16 November 2010
2335000
1894000
No. 1
No. 2
No. 1
5
4
22
Tuesday 8:30pm
8 February 2011
20 March 2012
2011000
1803000
No. 2
No. 3
No. 3
6
5
22
Tuesday 8:30pm
17 April 2012
16 April 2013
1762000
1509000
No. 4
No. 11
No. 16

Questions and formulas:
Question: How many were the show's average weekly ranking when it reached No. 2 in average nightly ranking?
Formula: ROWS(UNIQUE(FILTER(I1, H1="No. 2")))
Formula2: ROWS(UNIQUE(FILTER(I2:I6, H2:H6="No. 2")))
Level: medium
Question: What is the show's time slot during season 3?
Formula: LET(query1,SUMMARIZE(C1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,2)=3))
Formula2: LET(query1,SUMMARIZE(C2:C6,SUMX(A2:A6)),FILTER(query1,CHOOSECOLS(query1,2)=3))
Level: hard