Table:
0
A
B
C
D
E
F
1
Date
Episode
Performer 1
Performer 2
Performer 3
Performer 4
2
18 January 1991
1
Josie Lawrence
Greg Proops
Jim Sweeney
Tony Slattery
3
25 January 1991
2
Josie Lawrence
Mark Cohen
Tony Slattery
Mike McShane
4
1 February 1991
3
Mike McShane
Sandi Toksvig
Paul Merton
Jim Sweeney
5
8 February 1991
4
Josie Lawrence
Paul Merton
Julian Clary
Mike McShane
6
15 February 1991
5
Mike McShane
Colin Mochrie
Sandi Toksvig
Tony Slattery
7
22 February 1991
6
Mike McShane
Josie Lawrence
Denalda Williams
Sandi Toksvig
8
1 March 1991
7
Mike McShane
Paul Merton
Steve Steen
Jim Sweeney
9
8 March 1991
8
Greg Proops
Sandi Toksvig
Tony Slattery
Mike McShane
10
15 March 1991
9
London Compilation
London Compilation
London Compilation
London Compilation
11
22 March 1991
10
Josie Lawrence
Ryan Stiles
Christopher Smith
Jim Meskimen
12
29 March 1991
11
Mike McShane
Mark Cohen
Greg Proops
John Sessions
13
5 April 1991
12
Josie Lawrence
Ryan Stiles
Colin Mochrie
Mike McShane
14
12 April 1991
13
Christopher Smith
Sandi Toksvig
Jim Meskimen
Mike McShane
15
19 April 1991
14
John Sessions
Archie Hahn
Ryan Stiles
Mike McShane
16
26 April 1991
15
Greg Proops
George McGrath
Ryan Stiles
Mike McShane
17
3 May 1991
16
Josie Lawrence
Greg Proops
Sandi Toksvig
Mike McShane
18
10 May 1991
17
New York Compilation
New York Compilation
New York Compilation
New York Compilation

Questions and formulas:
Question: What was Performer 1's name who performed with Sandi Toksvig as Performer 3 and Mike McShane as Performer 4?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(E1="sandi toksvig")*(F1="mike mcshane")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F18,(E2:E18="sandi toksvig")*(F2:F18="mike mcshane")),3))
Level: medium
Question: What was Performer 4's name when Performer 3 was Ryan Stiles on episode 14?
Formula: LET(query1,LET(query1,FILTER(A1:F1,E1="ryan stiles"),SUMMARIZE(CHOOSECOLS(query1,6),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)=14))
Formula2: LET(query1,LET(query1,FILTER(A2:F18,E2:E18="ryan stiles"),SUMMARIZE(CHOOSECOLS(query1,6),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)=14))
Level: hard