Table:
0
A
B
C
D
E
1
Episode #
Title
Directed by
Written by
Originalairdate
2
1
" Artists in Crime "
Silvio Narizzano
T.R. Bowen
23 December 1990
3
2
" A Man Lay Dead "
Sarah Pia Anderson
Barbara Machin
17 April 1993
4
3
" The Nursing Home Murder "
Silvio Narizzano
Kevin Laffan
25 April 1993
5
4
" Final Curtain "
Martyn Friend
Barbara Machin Hugh Leonard
2 May 1993
6
5
" Death at the Bar "
Michael Winterbottom
Alfred Shaughnessy
9 May 1993
7
6
" Death in a White Tie "
John Woods
Ken Jones
16 May 1993
8
7
" Hand in Glove "
Martyn Friend
Ken Jones
10 January 1994
9
8
" Dead Water "
John Woods
T.R. Bowen
1 April 1994
10
9
" Scales of Justice "
Jim Goddard
Cyril Williams
29 August 1994

Questions and formulas:
Question: What is Written By, when Originalairdate is 25 April 1993?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="25 april 1993"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E10,E2:E10="25 april 1993"),4))
Level: medium
Question: What is Directed By, when Episode # is 7?
Formula: LET(query1,SUMMARIZE(C1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,2)=7))
Formula2: LET(query1,SUMMARIZE(C2:C10,SUMX(A2:A10)),FILTER(query1,CHOOSECOLS(query1,2)=7))
Level: hard